Memoirs of Museum Victoria /9: 01—49 (2020) Published 2020
1447-2554 (On-line)
httos://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/
DOI https://doi.org/10.24199/j.mmv.2020.79.01
A review of the New Guinea species of Chimarra Stephens (Trichoptera:
Philopotamidae)
(http://zoobank.org/urn:|sid:zoobank.org:pub:28679CF3-B7A F-47D9-AEOB-DC16F6DA3CAF)
DAVID I. CARTWRIGHT (http://zoobank.org/urn:lsid:zoobank.org:author: B243C388-6E24-4020-A60A-609ED2161EB7)
Abstract
Keywords
13 Brolga Crescent, Wandana Heights, Victoria 3216, Australia. (Email: davidcartwright3 @ bigpond.com)
Cartwright, D.I. 2020. A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae).
Memoirs of Museum Victoria 79: 01—49.
Descriptions are provided for males of 58 philopotamid species in the Trichoptera (caddisfly) genus Chimarra
Stephens. Among these are 49 new species from New Guinea (Papua New Guinea and the Indonesian province of Papua/
West Papua, including nearby islands): 41 new species from Papua New Guinea, seven from West Papua and one found in
both (C. bifida sp. nov.). The new species are: Chimarra absida sp. nov., C. aliceae sp. nov., C. antap sp. nov., C. bicornis sp.
nov., C. bicuspidus sp. nov., C. bifida sp. nov., C. bintang sp. nov., C. cavata sp. nov., C. clava sp. nov., C. cristata sp. nov., C.
damma sp. nov., C. denticulata sp. nov., C. ediana sp. nov., C. erecta sp. nov., C. espelandae sp. nov., C. harpes sp. nov., C.
huonana sp. nov., C. ismayi sp. nov., C. jari sp. nov., C. johansoni sp. nov., C. karamui sp. nov., C. kebarana sp. nov., C.
kewabi sp. nov., C. kuka sp. nov., C. laensis sp. nov., C. lalokiana sp. nov., C. lindyae sp. nov., C. maai sp. nov., C. mendiana
sp. nov., C. milneana sp. nov., C. missim sp. nov., C. morobensis sp. nov., C. newguineana sp. nov., C. olahi sp. nov., C.
pertica sp. nov., C. pindua sp. nov., C. projectura sp. nov., C. sappela sp. nov., C. sepikana sp. nov., C. simbuensis sp. nov.,
C. stella sp. nov., C. supia sp. nov., C. toliana sp. nov., C. trigona sp. nov., C. ukarumpana sp. nov., C. unidentata sp. nov., C.
verticas sp. nov., C. wara sp. nov. and C. wauana sp. nov. Only one described species (C. cyclopica Kimmins, 1962) 1s shared
by the two adjoining countries. Species separation 1s based almost entirely on male genitalic characteristics. The C. papuana
species group (after Mey, 2006; Olah, 2014) is reaffirmed; its key features being inferior appendages with the sub-terminal
or terminal process elongate and an elongate ventral process on segment IX. All 58 species treated here are endemic to New
Guinea, except for C. biramosa, which was originally recorded from the nearby Solomon Islands (Kimmins, 1957).
Trichoptera, caddisfly, Philopotamidae, Chimarra, Papua New Guinea, Papua Province, Indonesia
Table of contents Chimarra trigona SP. NOV. assa 14
Chimarra harpes Sp. MOV: sss bti skis 14
Abstract rr rr rr rr rr rr rr l Chimarra milnedna: sp, MOV, a 16
Introduction ue dede e PIPER per vet er er he er en da 2 Chimarra kuka sp. nov. cte 16
Material and methods NA 3 Chimarra absida sp. nov. eee 12
Taxonomy LA steer cle A MU ALA MA „Pet X = qun e olihi "ro TUN 18
Chimarra Stephens ............................ eee Henne DI EEA beia ZI LN TANA EEEk 18
General Features of males of New Guinea Chimarra .......... ? Chimarra cyclopica Kimmins 1962 ...ccccscccsssssssesesseseeseesee 20
Chimarra pertica Sp. NOV. sisse eene © Chimarra cavata sp. NOV. essesi 20
Chimarra guentheri Mey AA © Chimarra clava sp. NOV. seccscscssssssesessecscssesesesesesestersstsesceceees 21
Chimarra ukarumpana AAN © Chimarra newguineana sp. DOV. cicis 2]
Chimarra mendiana SP. UA 9 Chimarra pindua sp. NOV. eaan 23
Chimarra bintang SP. DON, assa 9 Chimarra sedlaceki Sykora 1967 .............. eee 23
Chimarra wauana eNA d 10 Chimarra morobensis STE TII Vie ii set reparte deeper pe Pro bro ihe. 25
Chimarra Jari SIMI Mk ko nmen ipe ma ipe malina malina no bokatekotakoetakekutkenin 10 Chimarra damma DION, AEE 25
Chimarra Johansoni SDa OV, o5 ides ese Sais tase Tia ch sabe awe sata sala sw loans 12 Chimarra aiyura Korboot 1965 ..........:ssssssssssssssssssesee........ 25
Chimarra Cristata sp. DOV. erara elkon rara rei tna bends 12 Chimarra bicuspidis sp. NOV. ....................sssssssssssssssssesececco 27
Chimarra projectura sp. DOV. assa Z Chimarra btfidd Sp. NOV. Lauer titor rimi ona rene e Re n 21
Chimarra toliana SP. NOV. assa 14 Chimarra biramosa Kimmins 1957 ss 28
Chimarra kewabl Sp. LANAN 28
Chimarra ulmeri Kimmins 1962 raa 30
Chimarra bicornis sp. NOV. assa 30
Chimarra sinuosa Kimmins 1962. aaa 31
Chimarra karamui SP. NOV. assa 31
Chimarra laensis Sp. NOV. ss sa lin LINI d eru deett 3]
Chimarra sappela sp. NOV. assa 33
Chimarra érecta Spi MOV: eatea ttt htt titre E ERR 33
Chimarra kokodana Kimmins 1962 ss 35
Chimarra espelandae sp. NOV. assa 35
Chimarra lalokiana sp. NOV. assa 36
Chimarra verticas sp. NOVI eretara tna e ER n sa 36
Chimarra antap Sp. NOV. so Ma Ma Ns ea l l tett eds s 36
Chimarra unidentata sp. NOV. assa 38
EN SDODOV, «o o aout lanto aa Eee E 38
Chimarra aliceae SP. DOV. assa 38
Chimarra wara SD. NOV. ss 40
Chimarra goroca Sykora 1967 ss 40
Chimarra huonana sp. NOV. rss 42
Chimarra missim Sp. NOV. assa 42
Chimarra denticulata sp. NOV. assa 42
Chimarra sepikana SP. DON, assa 44
Chimarra lindyae sp. nov. assa 44
Chimarra kebarana sp. NOV. assa 46
Chimarra simbuensis SD. NOV. assa 46
Chimarra maai SD. NOV. ars 46
CHURATA SUPLA SD: NOV, a n dpe ita rne sed AE dan 41
Chimarra ismayi SD. NOV. rss 41
Acknowledgements arasa 41
[Ede SIS eI ANO o QR eze AA laln PRENNE MT 49
Introduction
Chimarra 1s a cosmopolitan and very speciose genus, currently
including some 885 described species (Morse, 2018). This study
of the genus in New Guinea and its offshore islands increases
the total by 49 new species and revises nine species. Records of
Chimarra in New Guinea began with the description of C.
loriana by Navás (1933), and by 2016, additions by various
authors had increased the number of species to 77. With the
newly described species, the total is now 126 species.
The island of New Guinea (total area about 786 000 km2)
comprises the mainland parts of Papua New Guinea (PNG) and
Indonesian Papua/West Papua. PNG, the easternmost section
(total area about 462 840 km2) of New Guinea, includes the
New Britain, New Ireland and Bougainville islands and
numerous other small offshore islands). The western section,
Papua (formerly Irian Jaya; total area about 318 000 km2),
includes adjacent islands such as Batanta (area about 453 km2)
and Biak (area about 2455 km2).
New Guinea is situated just north of Australia and slightly
south of the equator. New Guinea extends to the south at
11° 30' south (Milne Bay area, PNG), west to nearly 132°E (W
Papua) and east to 156°E (Bougainville Island, PNG). The
Indonesian—PNG border is situated north to south at about
141°E. The climate of New Guinea is mainly tropical but is
modified by a spine of mountain ranges that runs west to east.
The highest points are Mount Wilhelm (PNG), at 4509 m, and
Puncak Jaya or Carstensz Pyramid (Papua), at 4884 m.
The genus Chimarra was first described in 1829 for a British
Cartwright D.I.
species, C. marginata Stephens. Subsequent major studies by
Ross (1956), Blahnik (1998) and Blahnik et. al (2009) have
redefined the genus.
In the Australasian biogeographical region, 143 Chimarra
species have been described previously: 28 from Australia
(Cartwright, 2002; Neboiss, 2003), 77 from New Guinea
(Morse, 2018; Olah, 2012a, not 16-17 as included in table 1;
Wells and Johanson, 2016), 27 trom the Fiji islands (Johanson
and Olah, 2012; Morse, 2018), 11 from the Solomon Islands
(Johanson and Espeland, 2010) and one from New Caledonia
(Johanson and Espeland, 2010; Morse, 2018; contra the 105
species of Wahlberg and Johanson, 2014). The description of 49
new species in this paper (from only 94 specimens) brings the
regional total to 192, or nearly one quarter of the world’s known
Chimarra fauna. Interestingly, 29 species are described from
Batanta Island (Olah, 2012b, 2013, 2014, 2016, 2018), which is
off the west coast of New Guinea and has an area of 453 km2.
This is nearly as many species as for the whole of nearby
mainland Papua (33 species; area about 318 000 km2) and
nearly half as many as in PNG Chimarra fauna (66 species).
This reinforces the notion that Chimarra species are under
collected and that the biodiversity of New Guinea is probably
ereatly under-estimated. Similarly, for Indonesia overall, with
106 species of Chimarra recorded (not 81 species as listed in
Morse, 2018), about half of which are found in Papua (54
species, including Batanta Island).
In this taxonomic revision of New Guinea Chimarra, 128
male specimens were examined and referred to 58 species.
Each of the 49 new species is known from fewer than eight
specimens; 29 species are known from only the holotype
male. Of the new species, 42 are recorded from PNG and
8 from Papua (including one from both — C. bifida).
Neboiss (1984) briefly compared the Trichoptera faunas of
mainland Australia, Tasmania, New Guinea (including West
Papua, PNG, New Britain and several PNG islands) and "SW
Pacific islands’. A few years later, Neboiss (1987b) carried out a
preliminary comparison of the Trichoptera faunas of Sulawesi,
New Guinea and Cape York Peninsula (north-east tip of
Australia). He noted that 16 species of Chimarra were recorded
from New Guinea (as illustrated 1n Neboiss, 1986a), but there
were no Chimarra species in common between any two of the
three regions. Wells and Johanson (2016) revisited Neboiss’
(1984) work and updated his totals with current estimates. They
noted only 17 species of Philopotamidae (all Chimarra? in their
Table 1) from New Guinea compared with Neboiss’ (1984,
1986a) estimates of 16.
The biogeographic analyses by Wahlberg and Johanson
(2014) revealed an origin for Chimarra in the Neotropical region
and a subsequent rapid radiation with dispersal into the Oriental,
Palaearctic and Australasian regions and secondarily to the
Nearctic region (Wahlberg and Johanson, 2014). Most of the
species of Chimarra from south-east Asia can be divided into
two distinctive groups. These correspond to the “lineages”
discussed by Ross (1956) and characterised by the species C.
digitata Martynov and C. tsudai Ross. Both groups, as is typical
of the species currently placed in the subgenus Chimarra, are
characterised by male genitalia with tergum X divided and
widely separated mesally into paired, sclerotised lateral lobes
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 3
(Blahnik, 1998, fig. 9A—B). Both groups are widespread and
species rich in Asia, with members of the digitata group also
occurring in the New World, Africa, and extending into some
Pacific islands and eastern Australia (Blahnik et al., 2009).
Members of the digitata group have genitalia with exactly two
hair-like sensilla on the lateral lobes of tergum X and an apically
divided membranous mesal lobe; whereas members of the
tsudai group have genitalia with the lateral lobes of tergum X
subdivided into sclerotised lateral and mesal lobes and have
numerous sensilla. The New Guinea species probably belong to
the digitata group (Blahnik et al., 2009).
A group of New Guinea species (C. papuana Kimmins, C.
schmidi Kimmins, C. sabrona Kimmins and C. guentheri Mey)
was initially defined by Mey (2006) to share the following
combination of derived characters states: in the hind wings, A2
does not form a loop but is incomplete or atrophied; in the
forewings, the stem of Rs is strongly sinuous with a thickening
before and at the base of the discoidal cell; and the ninth
segment bears a ventral long, straight process. Later, the
papuana group was re-defined by Olah (2014) to include C.
kozela Olah and Mey and C. kalija Olah, as having long and
arching filiform dorsoapical process on gonopods (inferior
appendages). Four new species described here can be aligned to
this group (personal observation). No clear groupings are
discerned among most of the New Guinea species.
Methods and materials
Among Chimarra species, size and body and wing colour can
be useful characters but are variable. Colour can be a useful
character in live or freshly preserved material but it often
fades in alcohol with time. Most of the Chimarra specimens
examined in this study were dried and pinned specimens that
were over 45 years old and many were in poor condition.
Some were stored in alcohol, many for over twenty years.
Most of the material studied was on loan from Museum
Victoria. Depositories for specimens are abbreviated as
follows: Bernice P. Bishop Museum, Honolulu, Hawaii, USA
(BPBM), Museum of Victoria, Melbourne, Australia (NMV),
Queensland Museum, Brisbane, Queensland (QM), National
Natural History Museum, Leiden, Netherlands (RMNH) and
Natural History Museum, London, England (BMNH).
Males of each species are readily distinguished by
cenitalic features but often require clearing of the abdomen in
potassium hydroxide. Some of these older dried specimens
cleared poorly in potassium hydroxide, making 1t hard to see
internal and some external structures of the genitalia. Females
were not examined in this study, due to the difficulty of
pairing them with males.
Figured specimens are identified by the notebook numbers
of Dr Arturs Neboiss (prefix PT-) or the author (prefix CT-).
Terminology generally follows that of Blahnik et al. (2009)
and Holzenthal et al. (2007). However, authors have used
several terms for the same structures, as outlined by Mufioz-
Quesada and Holzenthal (2008, p. 8). Terms for genitalic parts
are indicated on selected figures. Typically, setae or spines are
illustrated only on the right side of the figure (as viewed) to
enable clearer depiction of the underlying structures. Length/
width (L/W) measurements generally mean maximum length
divided by maximum width, although for the ventral process
of segment IX, L/W generally means baso-distal length
divided by basal width at junction with segment IX.
Table 1. Index and checklist of Chimarra from New Guinea (Papua New Guinea and the Indonesian Province of Papua/West Papua)
Indonesian Papua/West Papua Province
Chimarra abeli Oláh, 2013 (Batanta Island)
C. agasa Oláh, 2013 (Batanta Island)
C. anoaclana Malicky, 1978
C. arfaka Oláh, 2015
C. befela Oláh, 2015
C. belsay Malicky et al., 2014 (Biak Island)
C. biakensis Malicky et al., 2014 (Biak Island)
C. bifida sp. nov.
C. bintang sp. nov.
C. bobita Oláh, 2012 (Batanta Island)
C. bogos Oláh, 2013 (Batanta Island)
C. botos Oláh, 2015
C. cheesmannae Kimmins, 1962
C. cyclopica Kimmins, 1962
C. dialectica Malicky et al., 2014 (Biak Island)
C. eltuna Oláh, 2015
C. elvala Oláh, 2013 (Batanta Island)
C. erzek Oláh, 2013 (Batanta Island)
C. antap sp. nov.
C. bicornis sp. nov.
C. cavata sp. nov.
C. clava sp. nov.
C. cristata sp. nov.
C. damma sp. nov.
C. ediana sp. nov.
C. erecta sp. nov.
C. erzekela Oláh & Mey, 2013 (New Britain)
C. espelandae sp. nov.
Papua New Guinea
Chimarra absida sp. nov.
C. aiyura Korboot, 1965
C. aliceae sp. nov.
C. bicuspidus sp. nov.
C. bifida sp. nov.
C. biramosa Kimmins, 1957 (and New Britain, Bougainville Island, Solomon Islands),
C. cyclopica Kimmins, 1962
C. denticulata sp. nov.
Indonesian Papua/West Papua Province
C. falcata Kimmins, 1962
C. fehera Oláh, 2012 (Batanta Island)
C. feholda Oláh & Mey, 2013
C. felkora Oláh, 2012 (Batanta Island)
C. fogas Oláh, 2013 (Batanta Island)
C. furala Oláh, 2015
C. holda Oláh, 2012 (Batanta Island)
C. horgoka Oláh, 2012 (Batanta Island)
C. jari Sp. nov.
C. kalija Oláh, 2014 (Batanta Island)
C. kampa Oláh, 2016 (Batanta Island)
C. kanala Oláh, 2012 (Batanta Island)
C. kapcos Oláh, 2016 (Batanta Island)
C. kebarana sp. nov.
C. kerka Oláh, 2013 (Batanta Island)
C. kesken Oláh, 2015
C. lekera Oláh, 2015
C. lerovida Oláh, 2015
C. lud Malicky, 2011
C. maai sp. nov.
C. mrsale Oláh, 2013 (Batanta Island)
C. oláhi sp. nov.
C. nurga Oláh, 2016 (Batanta Island)
C. papuana Kimmins, 1962
C. parza Oláh, 2018 (Batanta Island)
C. porsen Oláh, 2015
C. rokana Oláh, 2016 (Batanta Island)
C. sabrona Kimmins, 1962
C. sarkos Oláh, 2013 (Batanta Island)
C. schmidi Kimmins, 1962
C. sepho Malicky, 2011
C. sinuosa Kimmins, 1962
C. stella sp. nov.
C. sukula Oláh, 2016 (Batanta Island)
C. taga Oláh, 2015
C. telcato Malicky et al., 2014 (Biak Island)
C. toliana sp. nov.
C. tompa Oláh, 2013 (Batanta Island)
C. tulok Oláh, 2013 (Batanta Island)
C. tuparna Oláh, 2013 (Batanta Island)
C. ujjka Oláh, 2012 (Batanta Island)
C. vegsem Oláh, 2013 (Batanta Island)
C. vekon Oláh, 2013 (Batanta Island)
C. waridora Oláh, 2013 (Batanta Island)
Cartwright D.I.
Papua New Guinea
C. formosa Botosaneanu & de Vos, 2006
C. goroca Sykora, 1967
C. gressiti Sykora, 1967
C. guentheri Mey, 2006
C. harpes sp. nov.
C. huonana sp. nov.
C. ISMAVI sp. nov.
C. johansoni sp. nov.
C. karamui sp. nov.
C. kewabi sp. nov.
C. ketaga Oláh & Mey, 2013 (New Britain)
C. kokodana Kimmins, 1962 (and New Britain)
C. kozela Oláh & Mey, 2013 (New Britain)
C. kuka sp. nov.
C. laensis sp. nov.
C. lalokiana sp. nov.
C. leopoldi Jacquemart, 1981
C. lindyae sp. nov.
C. longpela Cartwnght, 2001 (Bougainville Island)
C. lorengau Malicky, 1994
C. loriana (Navás, 1933)
C. massana Malicky, 1994 (Bismarck Archipelago.),
C. mendiana sp. nov.
C. milneana sp. nov.
C. missim sp. nov.
C. morobensis sp. nov.
C. mussaua Malicky, 1994
C. newguineana sp. nov.
C. panguna Cartwright, 2001 (Bougainville Island)
C. pertica sp. nov.
C. pindua sp. nov.
C. pinga Cartwright, 2001 (Bougainville Island)
C. projectura sp. nov.
C. sappela sp. nov.
C. sedlaceki Sykora, 1967
C. sepikana sp. nov.
C. simbuensis sp. nov.
C. supia sp. nov.
C. trigona sp. nov.
C. ukarumpana sp. nov.
C. ulmeri Kimmins, 1962
C. unidentata sp. nov.
C. verticas sp. nov.
C. wara sp. nov.
C. wauana sp. nov.
C. xenillion Neboiss, 1986
C. yaloma Malicky, 1994 (Bismarck Archipelago.)
C. yulae Cartwright, 2001 (Bougainville Island)
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 5
Taxonomy
Chimarra Stephens
Type species. Chimarra marginata by monotypy.
General features of males of New Guinea Chimarra
No formal key is provided for several reasons — primarily
because many characters varied considerably between species
(e.g. Rs sinuous or curved, thickened ranging to straight and
not thickened basad of discoidal cell in forewing, ventral
process on segment IX ranged from elongate and pole-like to
absent). Because of the poor condition of many of the
specimens (including the wings) and at times inadequate
clearing of the genitalia, some features were difficult to
discern with confidence.
Species are progressively separated throughout this paper
on the basis of the L/W ratio of the ventral process on segment
IX. Species were identified secondly by small differences 1n
the shape of the inferior appendages (especially in lateral
view) and the shape and position of the pair of lateral lobes on
segment X.
The first feature used was the ventral process on segment
IX. The relative length and the L/W ratio are used as a basic
means of separating the New Guinea Chimarra species. The
L/W ratio varies from 20 in C. pertica to O (absent) in many
species. Having a similar ratio does not necessarily imply a
relationship between the species. Only a few species (mostly
from the C. papuana group) such as C. pertica, C. guentheri
and C. ukarumpana have an elongate and slender ventral
process. Most species have a triangular or rounded keel or no
obvious process. [n the region, most Australian species have
no obvious keel or only a small triangular one (Cartwright,
2002). Of the nearby Solomon Islands species, most have no
obvious keel but Chimarra talinensis Johanson and Espeland
has an elongate and robust ventral process (Johanson and
Espeland, 2010), while in 24 species from Fiji (Johanson and
Oláh, 2012) and three species from Vanuatu (Johanson et al.,
2011), none has an obvious ventral process. Of the south-east
Asian species, most have no obvious process or only a small
keel; a few have a more pointed and elongate process,
including C. chiangmaiensis Chantaramongkol and Malicky,
C. khamuorum Chantaramongkol and Malicky, C. demeter
Malicky (Malicky, 2010). In Borneo, species in East
Kalimantan (Indonesia) and Sabah (Malaysia) have elongate
ventral processes, including Chimarra devogeli Blahnik et al.,
C. drepane Blahnik et al., C. fuilianae Blahnik et al. and C.
xiphosella Blahnik et al. (Blahnik et al., 2009).
The second character used here for species separation 1s
the shape of the inferior appendages (predominantly as
viewed laterally). The worldwide range of variation in this
structure 1s remarkable among Chimarra species. Although
most New Guinea species have distinctively shaped inferior
appendages, several exhibit slight variations on a pattern of
otherwise almost uniformly elongate sub-triangular inferior
appendages (in lateral view), making it difficult to distinguish
them from each other using this character. Many of the
species have inferior appendages with acute apices that are
inflexed or directed posteromesally and so are hidden in the
lateral view; instead, these appendages may appear slightly
truncate or abbreviated.
Other characteristics of interest include the form of the
lateral lobes of segment X, the shape of preanal appendages
on segment IX, the variety and shape of phallic structures, the
presence or absence of obvious sensilla on the lateral
processes of segment X, and variations 1n wing venation.
General characteristics of the New Guinea Chimarra. General
body colour and wings brownish (unless faded with time in
alcohol). Spur formula 1:4:4. Small to medium-sized adults.
Forewing length range, males: 3.5—7 mm, more commonly 4—6
mm. Forewing often with Rs sinuous or curved, thickened
(sometimes straight and not thickened) basad of discoidal cell,
occasionally with small, clear, depressed window (fig. 63),
forks l, 2, 3 and 5 present; hind wing with forks | (usually), 2,
3 and 5 present (fig. 7). At least two species — C. cyclopica and
C. aliceae — appear to have fork ] absent on the hind wing, as
originally noted by Kimmins for C. cyclopica (Kimmins 1962).
Male. Segment IX anterior margin ventral basally usually well-
developed, often rounded or V-shaped; ventral process usually
present, rarely very long (figs 1, 4), more usually short, keel-like
(figs 70, 78, 132) or without obvious process (figs 155, 158).
Preanal appendages usually short, rounded. Segment X with
mesal lobe membranous, reduced and pair of more heavily
sclerotised lateral lobes, mostly adpressed to phallus and without
short hair-like sensilla discerned. Phallus generally tubular,
phallobase expanded, rounded, usually with a pair of short,
slender, straight or slightly curved spines included subapically,
more rarely with only one or without obvious spines. Inferior
appendages one-segmented, shape highly variable.
Female. Females have rarely been associated for any New
Guinea species and were not examined during this study.
Remarks. No new material was seen for most of the previously
described New Guinea species. During this study, new material
was examined for the following nine species: C. aiyura,
C. biramosa, C. cyclopica, C. falcata, C. goroca, C. kokodana,
C. sedlaceki, C. sinuosa and C. ulmeri. These are re-described
and significant parts are figured here.
A papuana species group comprising eight species —
C. agasa Oláh, C. bobita Oláh, C. kalija Oláh, C. kozela Oláh
and Mey, C. papuana Kimmins, C. porsen Oláh, C. tompa
Oláh and C. tulok Oláh — was recognised by Mey (2006) and
further refined by Olah (2014). In this study, four new species
(C. bintang sp. nov., C. mendiana sp. nov., C. milneana sp.
nov. and C. ukarumpana sp. nov.) are aligned with the group,
primarily on the basis of the unique characteristic of the long
and curved filiform dorsoapical process on the inferior
appendages, supported by the generally elongate ventral
process on segment IX. Due to the poor condition of many of
the dried BPBM specimens examined during this study, it 1s
not possible to check and confirm all of the group characters,
especially some characters discussed by Mey (2006) and Oláh
(2014). No clear groupings were discerned among most of the
New Guinea species; therefore, none of the species below are
formally or informally grouped.
Chimarra pertica sp. nov.
Figures 1-3
Holotype. Male (dried, pinned specimen CT-357 figured), PNG
(south-east Central Province), Mamai Plantation, east of Port Glasgow,
150 m, about 10° 16' S, 149* 30' E, 27 January 1965, R. Straatman
(BPBM).
Diagnosis. The males of C. pertica, C. guentheri Mey and
C. eltuna Olah can be separated from other New Guinea
species by the very slender, elongate ventral process on segment
IX, reaching to at least midlength of inferior appendages.
Chimarra pertica differs from C. guentheri and C. eltuna in
that the ventral process is not dilated distally in lateral view
and the inferior appendages, in lateral view, have the dorsal
margin curved (slightly convex), not straight near the midlength.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.4 mm. Forewing with forks 1, 2, 3 and 5
present, Rs sinuous or curved, thickened basad of discoidal
cell; hind wing with forks 1, 2, 3 and 5 present.
Male. Segment [X anterior margin in lateral view, with angular
extension ventrally (fig. 1); ventral process a very elongate,
slender, rod-like projection, reaching almost length of inferior
appendages (figs 1, 2), length about 20 times width in lateral
view (fig. 1); preanal appendages small, rounded apically (figs
1, 3). Segment X with pair of lateral lobes (figs l, 3), broad
basally in lateral view, tapered in distal half, slender apically
(fig. 1), 1n dorsal view slender with slightly rounded and dilated
apices (fig. 3). Phallus with one slender internal spine
subapically (figs l, 3). Inferior appendages robust, apices acute,
slightly inflexed (figs 2, 3), in ventral view sub-quadrate (fig. 2),
in lateral view angled at about 45° to horizontal, length about 3
times width, upturned distally (fig. 1), length in ventral and
dorsal views about twice width (figs 2, 3).
Female. Unknown.
Etymology. Pertica — Latin for long pole or rod (elongate ventral
process on segment IX).
Remarks. Chimarra pertica 1s known only from the holotype
male from the type locality in south-east PNG.
Chimarra guentheri Mey, 2006
Figures 4—6
Chimarra guentheri Mey, 2006: 261, figs 1—4.
Type material (not seen). Holotype. Male (abdomen mounted as
microscope preparation, genitalia slide Mey 22/06). (PNG, East Sepik
Province) "D.N. Guinea T.40/Lager 7 26. V. 12/Kaiserin Augusta
Fluss Expedition/Burgers S.G.” (MNHU).
Material examined. PNG. 1 male (dried, pinned specimen CT-398
figured), (south-east Oro Province), Mount Suckling, 500 m (about
9° 45' S, 148° 58' E), 11-16 July 1972, J.L. Gressitt (BPBM ).
Diagnosis. The males of C. guentheri Mey and C. eltuna Olah
can be separated from other New Guinea species by the very
elongate and distally slightly dilated ventral process on segment
Cartwright D.I.
IX. Chimarra guentheri is most similar to C. eltuna, especially
in the length and shape of the ventral process on segment IX,
but differs slightly in lateral view in that the ventral margin of
the inferior appendages 1s less incised in the distal third, the
elongate ventral process has a cluster of fine spinules on the
ventral surface, and the phallus has one or two elongate,
internal spines subapically.
Description. (Revised after Mey, 2006). General body colour
and wings light brown to brown. Wings (Mey, 2006: fig. 4)
similar to C. ukarumpana (fig. 7). Length of forewing: male
4.|-4.4 mm. Forewing with forks 1, 2, 3 and 5 present, Rs
sinuous or curved, thickened basad of discoidal cell; hind wing
with forks 1, 2, 3 and 5 present (Mey, 2006).
Male. Segment IX anterior margin in lateral view, with angular
extension ventrally (fig. 4); ventral process slender, rod-like,
very elongate, reaching almost length of inferior appendages,
dilated 1n apical third, with fine spinules along ventral margin
(figs 4, 5), length in lateral view about 6.5 times maximum
width (fig. 4), preanal appendages small and rounded apically
(figs 4, 6). Segment X with pair of lateral lobes, short, hair-like
sensilla visible in basal half (fig. 6; Mey, 2006: figs 1—2), lobes,
in lateral view, broad basally, tapered slightly in distal half (fig.
4), 1n dorsal view, slender, with apices slightly out-turned (fig.
6). Phallus with one or two (two shown in Mey 2006: figs 1—2)
slender internal spines subapically (figs 4, 6). Inferior
appendages robust, somewhat semicircular, with acute,
posteromesally directed apices (figs 4-6), in lateral view
angled at about 45° to horizontal, length about 2.8 times width,
broadest near middle, ventral margin rounded, dorsal margin
straight, narrowed in basal third, tapered distally (fig. 4),
appearing truncate in Mey (2006: fig. 1) due to obscured,
inflexed apices, in ventral and dorsal views, broadest in basal
two thirds, with outer margin rounded and apices acute and
inflexed, nearly meeting dorsal to phallus (fig. 5; Mey, 2006:
figs 2—3).
Female. Unknown.
Remarks. Chimarra guentheri is known from the holotype
male and one other male from two localities in the East Sepik
and Oro provinces of PNG. These localities are about 1000 km
apart (in a straight line). New figures have been drawn to allow
direct comparisons and to accompany the description that 1s
revised in light of new interpretations of Chimarra genitalic
structures from Mey’s (2006) original description.
Chimarra ukarumpana sp. nov.
Figures 7—10
Holotype. Male (specimen in alcohol, CT-344 figured), PNG (East
Highlands District/Province), Ram Creek, Ukarumpa, about 6° 07' S,
145° 24' E, 23 June 1986, A. Wells (NMV, T-).
Diagnosis. The male of C. ukarumpana aligns with the
C. papuana group (after Mey, 2006) and is most similar to
C. papuana Kimmins and C. tulok Olah in that in lateral view,
the inferior appendages are sub-rectangular with the distal
margin truncate. C. ukarumpana and C. tulok can be separated
Philopotamidae)
A review of the New Guinea species of Chimarra Stephens (Trichoptera
lateral lobe
segment X
preanal
appendage
ventral process
segment IX
phallobase
fork 3
fork 5
fork 5
i
3, dorsal. 4-6, Chimarra guenther
>
, Wings.
2, ventral
SI
5,
1, lateral
ia
karumpana sp. nov., male, holotype
,
.
6, dorsal. 7, Chimarra u
4, lateral; 5, ventral
1a;
.
Figures 1—7. Chimarra spp.; 1-3, Chimarra pertica sp. nov., male, holotype, genital
Mey, male, genital
O Cartwright D.I.
lateral lobe
Te TZ segment X
=
LI
ù oaar RÀ
s at.
x
HA
TA
*
b
La 5 ta
OO *
T el * l =
„=
„e * L ©.
vea E
se " LEE
b > a
p a E ed
LI + wi a
b =
INTONM process Mata
, *
inferior appendage
à
Ek
* E laj
CE] O kj “La e
à P s. LA
1 *
4 Tn e ' ar Mu
- " * E
E >
» 4 LI
[I ' hus .
" 5 a Dop. EE E 5462. PL
E B e LI
g " so a = „a“
4 » [I a E
D . a
5 b E
sn GO e
. * = "
* E 2
- - E.
` e -
E “la
*
Li
z
a LI
*
* » RI ba
,
a i
LI b
^"
- * ^ ow Sn
- =
*
3
= " d TA
LA LI E
laj "t.e
. E “vri
-
. å uj toa
kos *
LI *
- T Ww -
o S
er
Figures 8—16. Chimarra spp.; 8—10, Chimarra ukarumpana sp. nov., male, holotype, genitalia; 8, lateral; 9, ventral; 10, dorsal. 11-13, Chimarra
mendiana sp. nov., male, holotype, genitalia; 11, lateral; 12, ventral; 13, dorsal. 14—16, Chimarra bintang sp. nov., male, holotype, genitalia; 14,
lateral; 15, ventral; 16, dorsal.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 9
from C. papuana by small differences 1n the genitalia, including
inferior appendages in lateral view are slightly more tapered
basally and not as regularly rectangular as for C. papuana and
have a more elongate dorso-apical projection. In
C. ukarumpana, the apices of the lateral lobes of segment X are
pointed distally and in C. tulok dorso-basally.
Description. General body colour and wings pale (faded).
Wings (fig. 7) similar to those of C. papuana (Kimmins, 1962:
fig. 10). Length of forewing: male 4.8 mm. Forewing with forks
l, 2, 3 and 5 present, Rs moderately sinuous or curved,
moderately thickened basad of discoidal cell; hind wing with
fork | absent, forks 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view, greatly
produced ventro-basally into a rounded extension (fig. 8);
ventral process slender, elongate, rod-like, extending past distal
margin of segment IX (figs 8, 9), in lateral view length about 10
times width (fig. 8); preanal appendages small, rounded apically
(figs 8, 10), narrowed basally (fig. 8). Segment X with pair of
slender lateral lobes, mostly adpressed to phallus, slightly
downturned and curved outwards apically (figs 8, 10), with two
small hairs subapically (fig. 9). Phallus with two slender spines
included subapically (figs 8—10). Inferior appendages robust,
sub-rectangular (figs 8, 9), in lateral view angled at about 30° to
horizontal, length about 2.5 times width, slightly broader in
apical half, truncate apically (fig. 8), with long and slender
dorso-subapical projection, apex slightly dilated, bearing two
short spines (figs 8—10), in ventral view with two small
projections on mesal margin (fig. 9).
Female. Unknown.
Etymology. Ukarumpana — named after the type locality
(Ukarumpa).
Remarks. Chimarra ukarumpana is known only from the
holotype male from the type locality in central PNG.
Chimarra mendiana sp. nov.
Figures 11—13
Holotype. Male (dried, pinned specimen, CT-403 figured), PNG
(S Highlands Province), Mendi, 1660 m, It tr, about 6° 10'S, 143° 40' E,
13 October 1958, T.C. Maa (BPBM ).
Diagnosis. The male of C. mendiana aligns with the
C. papuana group (after Mey, 2006) and is most similar to
C. bintang, sp. nov., C. papuana Kimmins, C. bobita Olah,
C. kalija Oláh and C. ukarumpana, sp. nov., because the
elongate ventral process on segment IX exceeds the distal
margin of segment IX. Chimarra mendiana differs from the
other species, including C. papuana, because the apex of the
dorso-apical projection of the inferior appendages is not
dilated, as in C. bobita and C. ukarumpana; in lateral view, the
distal margin of the inferior appendages is less severely
truncate than in C. papuana and C. ukarumpana, and more
sharply angled than in C. bobita, C. kalija and C. bintang.
Description. General body colour and wings fawn. Wings
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 5.5 mm. Forewing with forks 1, 2, 3 and 5 present, Rs
moderately sinuous or curved, moderately thickened, basad of
discoidal cell.
Male. Segment IX anterior margin in lateral view, with strong
angular extension ventrally (fig. 11); ventral process a slender,
rod-like, elongate projection, extending past distal margin of
segment IX (figs 11, 12), in lateral view, very slightly dilated
distally, length about 6.2 times width (fig. 11); preanal
appendages small, ovoid (figs 11, 13). Segment X with pair of
slender lateral lobes (hard to see in this specimen), closely
adpressed to phallus (figs 12, 13), no sensilla visible (fig. 13).
Phallus with one slender, elongate spine included near apex
(figs 11—13). Inferior appendages robust, in lateral view, angled
dorsally at about 75° to horizontal, proximally sub-rectangular,
length about 1.6 times width, broadest in basal half, tapered
basally and slightly distally (fig. 11), with long and slender
dorso-subapical projection, with very slender apex with two
short spines (figs 11—13), in ventral view with one small
projection on inner margin (fig. 12).
Female. Unknown.
Etymology. Mendiana — named for the type locality (Mendi).
Remarks. The single male specimen of Chimarra mendiana 1s
known from central PNG.
Chimarra bintang sp. nov.
Figures 14—16
Holotype. Male (dried, pinned specimen, CT-339 figured),
Indonesia, Papua Province (= West Papua), Star Range, Sibil, 1300 m,
about 5? 00' S, 141° 00' E, 26 June 1959, Museum Leiden, Netherlands,
New Guinea exp. (RMNH).
Material examined. Indonesia. 1 male (dried, pinned specimen, CT-
386, damaged), Papua Province, Star Range, Sibil Valley, 1245 m,
about 5° 00' S, 141° 00' E, 18 October-8 November 1961?, S. and L.
Quate (BPBM).
Diagnosis. The male of C. bintang aligns with the C. papuana
eroup (after Mey, 2006) and is most similar to C. porsen Olah,
C. bobita Oláh, C. kalija Oláh, C. mendiana and C. ukarumpana
in having the elongate ventral process on segment IX reach past
the distal margin of segment IX. Chimarra bintang 1s most
similar to C. porsen and C. mendiana 1n that in lateral view, the
apex of the dorso-apical projection of the inferior appendages 1s
not dilated as in C. bobita and C. ukarumpana. Chimarra
bintang differs from C. porsen, C. kalija and C. ukarumpana in
having the ventral process on segment IX slightly tapered distally
in lateral view and the inferior appendages gradually tapered in
distal third, with ventral margin almost irregularly convex.
Description. General body colour and wings fawn (faded).
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.6—5.7 mm. Forewing with forks 1, 2, 3 and 5
present, Rs slightly to moderately sinuous or curved, slightly to
moderately thickened basad of discoidal cell; hind wing with
forks l, 2, 3 and 5 present.
10
Male. Segment IX anterior margin in lateral view, with rounded
extension ventrally (fig. 14); ventral process slender, rod-like,
elongate, extending almost to distal margin of segment IX (figs
14, 15), in lateral view slightly tapered distally, length about 4.5
times width (fig. 14); preanal appendages small, rounded apically
(figs I4, 16). Segment X with pair of slender lateral lobes,
adpressed laterally to phallus (figs 14-16), with one pair of
sensilla visible subapically (fig. 16). Phallus with one slender,
elongate, spine included subapically (figs 14—16). Inferior
appendages robust, in lateral view angled dorsally at about 45° to
horizontal, sub-semicircular, length about 2.2 times width,
broadest in middle, tapered gradually basally and apically,
ventral margin irregularly convex (fig. 14), with long and slender
dorso-subapical projection, with very slightly dilated apex
bearing two short spines (figs 14—16), in ventral view with two
small projections on mesal margin (fig. 15).
Female. Unknown.
Etymology. Bintang — Indonesian for star (locality Star Range).
Remarks. Only the two males (one damaged) of Chimarra
bintang are known from the type locality in Papua.
Chimarra wauana sp. nov.
Figures 17—19
Holotype. Male (dried, pinned specimen, CT-367 figured), PNG,
Morobe Province, Wau, 1700 m, about 7? 20' S, 146? 43' E, Malaise
Trap, 23 July 1965, J. and M. Sedlacek (BPBM ).
Paratypes. PNG. 1 male (dried, pinned specimen, C 1-368), same
locality and collector as holotype, 30 July 1965 (BPBM); 1 male
(dried, pinned specimen, C'1-406), same locality and collector as
holotype, 1750 m, 16 August 1965 (BPBM); 1 male (PT-1240), same
locality and collector, 1750 m, 27 September 1965 (BPBM ).
Material examined: PNG. 1 male (CT-402), Central Province, Mount
Albert Edward, 2820 m, about 8° 20' S, 147° 30' E, Malaise Trap, 10
November 1965, J. Sedlacek (BPBM ).
Diagnosis. The males of C. wauana can be separated from all
other New Guinea species by the dorso-ventrally flattened
ventral process on segment IX and, in lateral view, sub-
parallelogram shaped inferior appendages, with both dorsal and
ventral margins straight and parallel for much of their length.
Description. General body colour and wings light brown to
brownish. Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 5.0—5.4 mm. Forewing with forks 1,
2, 3 and 5 present, Rs straight or slightly sinuous or curved, not
thickened basad of discoidal cell; hind wing with forks 1, 2, 3
and 5 present.
Male. Segment IX anterior margin in lateral view, with strong
angular extension ventrally and minute extension dorsally (fig.
17); ventral process a dorso-ventrally flattened projection, width
in ventral view about 6 times width in lateral view (figs 17, 18), in
lateral view, length about 11 times width (fig. 17), preanal
appendages relatively large, truncate apically. Segment X lateral
lobes laterad of phallus, laterally compressed or plate-like, with
sensilla not discerned (figs 17, 19), in lateral view robust,
downturned slightly apically to broadly rounded apices (fig. 17),
Cartwright D.I.
in dorsal and ventral views appear slender and slightly out turned
apically (figs 18, 19). Phallus with two slender spines included
subapically (figs 17—19). Inferior appendages robust, with apices
acute, posteromesally directed (figs 17—19), in lateral view angled
dorsally at about 45° to horizontal, sub-parallelogram, dorsal
and ventral margins mostly parallel, length about 5 times width,
tapered gradually in basal quarter (fig. 17), in ventral and dorsal
views, with curved lateral margins, tapered distally (figs 18, 19).
Female. Unknown.
Etymology. Wauana — named for type locality (Wau).
Remarks. Five male specimens of Chimarra wauana are
known from two higher altitude localities in the Morobe and
Central Provinces of PNG; these sites are separated by about
150 km.
Chimarra jari sp. nov.
Figures 20—22
Holotype. Male (dried, pinned specimen, CT-338 figured),
Indonesia, Papua Province (West Papua), Star Range, 1500 m, Sibil,
30 June 1959, Museum Leiden, Netherlands, New Guinea exp.
(BPBM).
Diagnosis. The male of C. jari can be separated from all other
New Guinea species by the subapical, mesal finger-like
projection on the inferior appendages, and more basally
situated, slender ventral process on segment XI.
Description. General body colour and wings pale (faded).
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 5.1 mm. Forewing with forks 1, 2, 3 and 5
present, Rs moderately sinuous or curved, strongly thickened
basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with rounded
extension ventrally (fig. 20); ventral process a short, slender
projection, situated towards base of segment (figs 20, 21), 1n
lateral view length about 5.3 times width, slightly tapered
distally (fig. 22), 1n ventral view slightly rounded apically (fig.
21), preanal appendages small, rounded apically (fig. 22).
segment X with pair of plate-like, laterally flattened lateral
lobes, sensilla not obvious (figs 20—22), in lateral view lobes
appear robust, broadly rounded apically (fig. 20), 1n dorsal view
expanded basally, appear very slender distally, apically acute
(fig. 22). Phallus slightly laterally compressed with one slender
spine included at about midlength (figs 20, 22). Inferior
appendages robust, apices acute (figs 20—22), 1n lateral view
angled at about 30° to horizontal, length about 3 times width,
broadest near middle, narrowed basally, tapered in apical third
(fig. 20), in ventral and dorsal views broad with lateral and
mesal margins in distal half almost parallel, subapically with
slender, finger-like mesal process (figs 21, 22).
Female. Unknown.
Etymology. Jari — Indonesian for finger.
Remarks. Chimarra jari is known only from the holotype male
from eastern Papua.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 11
7
re
'-
bd
^g
.
i Ma
b
IX ALLE
à x
.
SAAD AA ina, S
LI
subapical projection
inferior appendage
*
-
~i
b
4
. l;a
phallus
E
5 o».
B, €"
eal e
LI
* Li
ei erak dn
LI “ora!
- zov a a
lateral lobe
e, VP EL
QU
4 "ka - l
E
u
ke“ =
X
e LJ
=
LA è - 4
segment X JJ
413 “tu M "v d
d a „l d. P er EA
» ^ b ' i$ d a * J
a I. t^ Au^
"i " : i 1 = Š “> € . "
A , A 1. ; Ed E
F ' srd | Lj "an A
4 A . "Ww e
4 A dk : ut ! . tt. - n
- > š KO O a “| 4 ~~
LI a A t A 3 e "
= . à
A ue E [ P 1 " d a Bra
pi i >p EEA
E D i ^p^ ' , I e i i
, b? Ie Gk Ao
fro, b: o MPs, SOR e a
25 FO. A C
I. n- "la d NE" - d
ME ae” vd
d mE.
Ĉi Voj
UE
b
Figures 17-25. Chimarra spp.; 17-19, Chimarra wauana sp. nov., male, holotype, genitalia; 17, lateral; 18, ventral; 19, dorsal. 20-22, Chimarra
jari sp. nov., male, holotype, genitalia; 20, lateral; 21, ventral; 22, dorsal. 23—25, Chimarra johansoni sp. nov., male, holotype, genitalia; 23,
lateral; 24, ventral; 25, dorsal.
12
Chimarra Johansoni sp. nov.
Figures 23-25
Holotype. Male (dried, pinned specimen, CT-407 figured), PNG,
Morobe Province, Wau, 1400 m, about 7? 20' S, 146? 43' E, banana
yeast bait, 18 February 1972, J.L. Gressitt (BPBM ).
Diagnosis. The male of C. johansoni 1s similar to C. toliana,
sp. nov. and C. trigona, sp. nov. in some genitalic characters,
such as the shape of the inferior appendages and ventral process
of segment IX, in lateral view. C. johansoni can be separated
from the other two species by the presence of a subapical
projection on the inferior appendages, which is truncate in
lateral view and finger-like in ventral and dorsal views.
Description. General body colour and wings pale (faded).
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.6 mm. Forewing with forks l, 2, 3 and 5
present, Rs moderately sinuous or curved, strongly thickened,
basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with elongate
angular extension ventrally (fig. 23), ventral process forming
rod-like projection extending almost to distal margin of segment
IX (figs 23, 24), in lateral view length about 4 times width,
dilated slightly distally (fig. 23), in ventral view slightly rounded
apically (fig. 24); preanal appendages small, rounded apically
(figs 23, 25). Segment X lateral lobes hard to discern, laterad of
phallus (figs 23, 25), in lateral view, robust, apices rounded fig.
23), in dorsal view, closely adpressed to phallus (fig. 25). Phallus
with two slender spines included near middle (fig. 23). Inferior
appendages robust, in lateral view, angled at about 60° to
horizontal, length about 2.8 times width, broadest in basal half,
narrowed strongly near one-third length, almost parallel sided
in distal half, tapered gradually distally, subapical projection
appears truncate (fig. 23), in ventral and dorsal views, broadest
in basal half, mesal margin angular near middle, subapical
projection digitiform, angled posteromesally (figs 24, 25).
Female. Unknown.
Etymology. Named for Kjell Arne Johanson for his contribution
to the study of Chimarra in the south-west Pacific region.
Remarks. Chimarra johansoni 1s known only from the holotype
male from the type locality 1n eastern PNG.
Chimarra cristata sp. nov.
Figures 26—28
Holotype. Male (dried, pinned specimen, CT-353 figured), PNG,
Eastern Highlands Province, Karimui, south of Goroka, 1000 m,
about 6° 32' S, 144? 47' E, It tr, 5 June 1961, J.L. Gressitt (BPBM ).
Paratype. PNG. | male (dried, pinned specimen CT-372), Eastern
Highlands Province, Kassam, 48 km east of Kainantu, 1350 m, about
6° 18'S, 145° 52' E, 7 November 1959, T.C. Maa (BPBM).
Diagnosis. The males of C. cristata can be separated from all
other New Guinea species by the combination of having the
inferior appendages with acute apices bearing a distinctive tuft
of two or three elongate setae, and the ventral process on
segment IX slightly angled near midlength, in lateral view.
Cartwright D.I.
Description. General body colour and wings fawn. Wings
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 4.2-4.3 mm. Forewing with forks |, 2, 3 and 5 present, Rs
moderately sinuous or curved, thickened basad of discoidal
cell; hind wing with forks 1?, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view, with angular
extension ventrally (fig. 26); ventral process in form of short
slender projection with apex almost level with distal margin of
segment IX (figs 26, 27), in lateral view length about 3 times
width, slightly bent near middle (fig. 26), in ventral view
slightly tapered distally (fig. 27); preanal appendages small,
rounded apically (figs 26, 28). Segment X with sensilla not
obvious, lateral lobes stout, tapered to pointed apices (figs 26,
28). Phallus with two slender spines embedded subapically (fig.
26, 27). Inferior appendages robust, tapered in distal quarter
with acute, inflexed apices, bearing tuft of two or three elongate
setae (figs 26-28), in lateral view, angled at about 45° to
horizontal, length about 3.2 times width, almost parallel sided
in basal three quarters (fig. 26), in ventral view, broadest in
basal half, angled at about right angles basomesally (fig. 27).
Female. Unknown.
Etymology. Cristata — Latin for tufted or crested (hairs at tip of
inferior appendages).
Remarks. Chimarra cristata is known from two male specimens
from separate localities 1n the Eastern Highlands of PNG.
Chimarra projectura sp. nov.
Figures 29-31
Holotype. Male (dried, pinned specimen C'1-399 figured), PNG
(south-east Oro Province), (Mau Island), Mount Suckling, 500 m,
about 9° 42' S, 149° 02' E, at light, 11 July 1972, J.L. Gressitt (BPBM ).
Diagnosis. The male of C. projectura can be separated from all
other New Guinea species by the distinctive meso-dorsal
projection on the inferior appendages.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.3 mm. Forewing with forks l, 2, 3 and 5
present, Rs moderately sinuous or curved, moderately thickened
basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with broadly
rounded extension ventrally (fig. 29); ventral process a short
slender projection distally tapering slightly, in length short of
distal margin of segment IX (figs 29, 30), in lateral view length
about 3 times width; preanal appendages rounded apically (fig.
20). Segment X laterally compressed, platelike, apices acute,
with sensilla not obvious (fig. 31), in lateral view, lateral lobes
robust, tapered distally (fig. 29), in dorsal view lateral lobes
slender distally (fig. 31). Phallus with one slender spine included
subapically (fig. 29). Inferior appendages robust, tapered
distally with acute apices (figs 29-31), in lateral view aligned
horizontally, length about equal to width, ventral margin
convex, dorsal margin with finger-like dorsal projection (fig.
29), in ventral and dorsal views broadest in basal half, dorsal
projection angled meso-dorsally (figs 30, 31).
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae)
LI
SIN PT ei
"
-
LA
E
ea HEK
= =
13
LI i " -
*
>
.
LI
LI
—
LI :
Mi p
8 B^. rl
LUME.
. 4 1.
i en I
*
= +
b etz b
LA
LI
—-
LA
-
>
*
*
E
-
A
Li
'
—
*
D
Teka
M
LI
1
s
-
LI
*
Li " LJ *
? p = E FF ^
P *
Li d e „ e 4 "e
L va
~ a . ]
7 LU ”
+? “e Ea E)
*. DO a , 9 -
LI =. - , .
LI
Lj
E
LI
*
— a
E
LJ
=
E
5
E 4
E
ko.
s..
Lj
LJ
— ——
ë
LI
-
c
-
-
LI
*
MTS E = | l ^.
` 4: 7 A
: V
—— una ds
a LI " ^" œ D D *
a ? » ^s b « “i a t 4 4 "
d = a . *. e i E
4 ^. La t = " ED
LI y " = * M a 4 , L]
a ba e &-~ E AN
LI > X 2 "A ' '
d A o Hek u GA z
. Ma „49
LA E
» QT wit
Figures 26-34. Chimarra spp.; 26-28, Chimarra cristata sp. nov., male, holotype, genitalia; 26, lateral; 27, ventral; 28, dorsal. 29-31, Chimarra
projectura sp. nov., male, holotype, genitalia; 29, lateral; 30, ventral; 31, dorsal. 32-34, Chimarra toliana sp. nov., male, holotype, genitalia; 32,
lateral; 33, ventral; 34, dorsal.
14
Female. Unknown.
Etymology. Projectura — Latin for projection (inferior appendages).
Remarks. Chimarra projectura 1s known only from the type
locality 1n south-east PNG.
Chimarra toliana sp. nov.
Figures 32-34
Holotype. Male (dried, pinned specimen C 1-383 figured), Indonesia,
Papua Province, Swart Valley (renamed Toli Valley?), (1500 m?), about
3° 38' S, 138° 30' E, It tr, 10 November 1958, J.L. Gressitt (BPBM).
Diagnosis. The male of C. toliana 1s most similar to C. trigona
but can be separated from it and all other New Guinea species
by the distinctive dorso-ventrally constricted apices on the
inferior appendages, appearing in lateral view as a slender
point but robust and truncate in ventral and dorsal views.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 5.2 mm. Forewing with forks 1, 2, 3 and 5
present, Rs moderately sinuous or curved, slightly thickened
basad of discoidal cell.
Male. Segment [X anterior margin in lateral view, with angular
extension ventrally (fig. 32); ventral process a short projection
with apex about level with distal margin of segment IX, slightly
tapered distally (igs 32, 33), in lateral view length about 2.7
times width (fig. 32), in ventral view triangular, distally acute (fig.
33); preanal appendages rounded apically (figs 32, 33). Segment
X (damaged?) with a slender dorsal projection (fig. 32), lateral
lobes platelike, adpressed to phallus, tapered to acute apices, two
pairs of ?conical sensilla obvious (fig. 34), in lateral view lateral
lobes robust (fig. 32), in dorsal view lateral lobes slender (fig. 34).
Phallus with one slender spine embedded subapically (fig. 32).
Inferior appendages robust, tapered distally, apex dorso-ventrally
flattened at least on left appendage, in lateral view appears
slender, in ventral and dorsal views sub-truncate (right appendage
slightly damaged; figs 32-34), in lateral view, angled at about 45°
to horizontal, sub-triangular, length about 3 times width, ventral
margin angled in basal half, dorsal margin almost straight (fig.
32), in ventral and dorsal views broadest in basal half, angled at
about right angles basomesally, with irregularity or tooth on
mesal margin (figs 33, 34).
Female. Unknown.
Etymology. Toliana — named after the type locality (Toli
Valley, formerly the Swart Valley).
Remarks. Chimarra toliana is known only from the type
locality in Indonesian Papua. The genitalia (inferior appendage
only) of the holotype male is slightly damaged on the right side.
Chimarra trigona sp. nov.
Figures 35—37
Holotype. Male (dried, pinned specimen C1-354 figured), PNG,
Morobe Province, Wau, 1200 m, about 7° 20' S, 146° 43' E, Malaise
Trap, 17 August 1961, J. Sedlacek (BPBM).
Cartwright D.I.
Diagnosis. The male of C. trigona is most similar to C. toliana
but can be separated from it and all other New Guinea species
by the shape of the inferior appendages in lateral view, with the
basal half robustly triangular and distal half relatively slender.
Description. Male. General body colour and wings light
brownish. Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 4.3 mm. Forewing with forks 1, 2, 3
and 5 present, Rs moderately sinuous or curved, moderately
thickened basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with angular
extension ventrally (fig. 35); ventral process short with apex
extending past distal margin of segment IX (figs 35, 36), in
lateral view length about 2.5 times width, apex acute (fig. 35),
in ventral view triangular, pointed distally (fig. 40); preanal
appendages rounded apically (figs 35, 36). Segment X mesal
lobe indistinct, lateral lobes elongate with sensilla not obvious
(fig. 37), in lateral view lateral lobes robust, tapered slightly
towards apices (fig. 35), in dorsal view slender, dilated slightly
in distal half with rounded apices (fig. 37). Phallus with two
slender spines embedded subapically (fig. 35). Inferior
appendages broadest basally, narrowed near middle, tapered
distally, apices acute, directed posteromesally (figs 35—37), 1n
lateral view angled at about 45° to horizontal, broadly triangular
in basal half, slender in distal half (fig. 35), in ventral view
angled at about right angles basomesally (fig. 36).
Female. Unknown.
Etymology. Trigona — Latin for triangular, having three corners
(inferior appendages).
Remarks. Chimarra trigona is known only from the type
locality in north-east PNG.
Chimarra harpes sp. nov.
Figures 38—40
Holotype. Male (specimen in alcohol, CT-336 figured), PNG,
(?Central Province), locality and collector (A. Wells?) unknown
(NMV, T-22453).
Paratypes. PNG. 2 males, collected with holotype (NMV ).
Diagnosis. T he males of C. harpes are most similar to C. clava
and C. longpela Cartwright in the elongate shape of the inferior
appendages but can be separated from those and all other New
Guinea species by small differences in the inferior appendages,
which in lateral view, are elongate and slightly dilated 1n the
distal third, with a meso-apical projection and a distinctive
elongate embedded phallic spine, not found in any other New
Guinea Chimarra species.
Description. General body colour and wings pale (faded).
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 3.8—4.1 mm. Forewing with forks 1, 2, 3 and 5
present, Rs moderately sinuous or curved, moderately thickened
basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with
rounded extension ventrally (fig. 38), ventral process in
lateral view short, apically close to length of distal margin of
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 15
CA A (== === zu LL "mus c = o"
=
—
Figures 35-43. Chimarra spp.; 35-37, Chimarra trigona sp. nov., male, holotype, genitalia; 35, lateral; 36, ventral; 37, dorsal. 38—40, Chimarra
harpes sp. nov., male, holotype, genitalia; 38, lateral; 39, ventral; 40, dorsal. 41-43, Chimarra milneana sp. nov., male, holotype, genitalia; 41,
lateral; 42, ventral; 43, dorsal.
16
segment IX (figs 38, 39), length about 2.5 times width,
slightly rounded distally (fig. 38), 1n ventral view narrowly
triangular, distally acute (fig. 39); preanal appendages in
dorsal view appear rounded (fig. 40), in lateral view appear
sub-quadrate (fig. 38). Segment X with one pair of sensilla
visible (fig. 40), in lateral view lateral lobes robust, apically
truncate, with short ventrally directed digitiform process at
apico-ventral angle (fig. 38), in dorsal view lateral lobes
difficult to discern, aligned laterally to phallus, apices
rounded (fig. 40). Phallus with a slender, elongate embedded
spine (figs 38, 40) and a second shorter spine basally (fig. 40).
Inferior appendages elongate, slightly laterally flattened,
sword-shaped (figs 38—40), in lateral view aligned nearly
horizontally, length about 5 times width, appears club-like,
slightly dilated in distal third, apices broadly rounded (fig.
38), in ventral and dorsal views with slender meso-apical
projection (figs 39, 40).
Female. Unknown.
Etymology. Harpes — Latin for curved sword or scimitar (shape
of inferior appendages in lateral view).
Remarks. Chimarra harpes is known from three males from
one (unknown?) locality 1n eastern PNG.
Chimarra milneana sp. nov.
Figures 41—43
Holotype. Male (specimen in alcohol, CT-390 figured), PNG,
Milne Bay Province, Milne Bay, about 10° 22' S, 150° 30' E, 14—23
February 1969, J. and M. Sedlacek (BPBM).
Diagnosis. The male of C. milneana aligns vaguely with
the C. papuana group in possessing a filiform dorsoapical
process on the inferior appendages but lacking an elongate
ventral process on segment IX (after Mey, 2006) and is
most similar to C. bobita Olah, 2012. Chimarra milneana
can be separated from C. bobita and other members of the
eroup by the relatively short ventral process on segment IX
and the sharply and complexly angled ventral margin of the
inferior appendages.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.3 mm. Forewing with forks l, 2, 3 and 5
present, Rs moderately sinuous or curved, moderately
thickened, basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with
narrowly rounded extension ventrally (fig. 41); ventral process
short, tapered and acute distally (fig. 42), almost reaching distal
margin of segment IX (figs 41, 42), in lateral view length about
2.5 times width (fig. 41); preanal appendages sub-rectangular
with rounded apices (figs 41, 43). Segment X mesal lobe with
dorsally directed, dorso-ventrally flattened projection, lateral
lobes elongate, laterally compressed distally, with sensilla not
discerned (fig. 43), in lateral view lateral lobes appear robust,
with slightly downturned apices (fig. 41), in dorsal view lateral
lobes tapered near middle, appear very slender in distal half
(fig. 43). Phallus with two slender spines included subapically
Cartwright D.I.
(fig. 43). Inferior appendages robust in basal two thirds,
narrowed in distal third, with dorso-subapical projection
bearing three hairs apically, directed posteromesally (figs 41—
43), in lateral view inferior appendages angled at about 45° to
horizontal, length about 1.6 times width, ventral margin angled
at about 90° both near distal two thirds and distally (fig. 41), in
ventral view mesal margin angled at about 90° distally, with
projection on the mesal surface (fig. 42).
Female. Unknown.
Etymology. Milneana — named after the type locality (Milne
Bay).
Remarks. Chimarra milneana is known only from the type
locality in south-east PNG.
Chimarra kuka sp. nov.
Figures 44—46
Holotype. Male (dried, pinned specimen C'1-375 figured), PNG,
Eastern Highlands Province, Kassam, 1350 m, about 6° 18' S,
146° 15' E, sweeping, 28 October 1959, T.C. Maa (BPBM).
Diagnosis. The male of C. kuka can be separated from all other
New Guinea species in having distinctive slender, pincer-like
inferior appendages. Superficially, the inferior appendages are
similar to the pincer-like ones of C. atnia Malicky and
Chantaramongkol from Peninsula Malaysia and Thailand;
however, other features of the genitalia such as the shape of the
lateral lobes of segment X and ventral processes on segments
VIII and IX and phallic structure differ slightly.
Description. General body colour and wings fawn. Wings
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 5.4 mm. Forewing with forks 1, 2, 3 and 5 present, Rs
Sinuous or curved, thickened, basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, without
extension ventrally (fig. 44); ventral process short, sharply
triangular in ventral view, arising close to base, apex well short
of distal margin of segment IX (figs 44, 45), in lateral view
length about 2.3 times width (fig. 44); preanal appendages sub-
ovate, rounded apically (fig. 44). Segment X lateral lobes
slightly laterally compressed (left lobe damaged distally),
robust in basal half tapered slightly distally to narrowly
rounded apices, sensilla not discerned (figs 44-46), in dorsal
and ventral views lobes with apices slightly out turned (figs 45,
46). Phallus without any discernible spines. Inferior appendages
broadest basally, tapered and slightly dorso-ventrally flattened
distally, with apices acute, directed slightly posteromesally
(figs 44-46), in lateral view angled at about 45° to horizontal,
length about 4 times width at base, very slender in distal half
(fig. 44).
Female. Unknown.
Etymology. Kuka — New Guinea Pidgin for pincers (inferior
appendages).
Remarks. Chimarra kuka is known only from the holotype
male from central PNG.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 17
mesal lobe
segment X
lateral lobe
segment X
lateral lobe
segment X
mesal lobe
Ea
4
z s pU
1
*
ues Tr
*
-
L]
-
,
— = ETE
E
Li
i i
=,"
LI
»
bt
-
-
3
m
to
Lj
=
LI
t
— ETE
=
GO
'
b
i
Pe,
*
1
=
"
LI
da
LU
p
D
'
Ld
LJ
ba
=i ow
LI
-
-
Figures 44—52. Chimarra spp.; 44—46, Chimarra kuka sp. nov., male, holotype, genitalia; 44, lateral; 45, ventral; 46, dorsal. 47—49, Chimarra
absida sp. nov., male, holotype, genitalia; 47, lateral; 48, ventral; 49, dorsal. 50—52, Chimarra oláhi sp. nov., male, holotype, genitalia; 50, lateral;
5], ventral; 52, dorsal.
18
Chimarra absida sp. nov.
Figures 47—49
Holotype. Male (specimen in alcohol, C 1-346 figured), PNG, West
Highlands Province, Trauna River, Bayer River Sanctuary, 1160 m, about
5? 30'S, 144° 10' E, UV light, 16 June 1986, A. Wells (NMV, 1-224506).
Paratype. 1 Male (C1-370), PNG, north-east, Lae, Singuawa R., 30
m, about 6° 45' S, 147° 10' E, 3 April 1966, O.R. Wilkes (BPBM).
Diagnosis. The males of C. absida are most similar to C. holda
Oláh in having the ventral margin of the inferior appendages
short, curved and convex in lateral view, and a series of small
embedded spines positioned across the phallus subapically.
Chimarra absida can be separated from C. holda Oláh by the
more robust inferior appendages with right angle present
basomesally, as viewed ventrally. Chimarra absida 1s also
superficially similar to the northern Australian species
C. stclairae Cartwright but lacks the two small processes on
the mid-mesal margin of the inferior appendages.
Description. General body colour and wings light brown.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.4 mm. Forewing with forks 1, 2, 3 and 5
present, Rs slightly sinuous or curved, slightly thickened basad
of discoidal cell; hind wing with forks 1, 2, 3 and 5 present.
Male. Segment IX anteroventral margin in lateral view greatly
produced and rounded (fig. 47); ventral process short, triangular
with acute apex, basal to posterior margin of segment IX (figs
47, 48), length about twice width (fig. 47); preanal appendages
rounded apically (figs 47, 48). Segment X mesal lobes robust,
appear truncate in lateral view and triangular in dorsal view
(figs 47, 49), lateral lobes robust, with sensilla not discerned
(fig. 49), 1n lateral view, lateral lobes dilated and downturned
slightly 1n distal half, apices rounded (fig. 47), 1n ventral and
dorsal views lateral lobes tapered slightly distally to attenuate
apices (figs 48, 49). Phallus with four short, slender spines
included subapically and at about two-thirds length, angled
across phallus. Inferior appendages short, stout, with acute
apices directed posteromesally (figs 47, 49), in lateral view
angled at about 30° to horizontal, length about 2.4 times width,
broadest near middle, tapered slightly basally and distally with
dorsally directed apices, dorsal margin slightly concave, ventral
margin strongly convex (fig. 47), in ventral view appears
truncate, disto-mesal margin with 90? angle (fig. 48).
Female. Unknown.
Etymology. Absida — Latin for arc, segment of circle (ventral
margin of inferior appendages).
Remarks. Chimarra absida is known from two male specimens
from separate localities in in central and eastern PNG.
Chimarra olahi sp. nov.
Figures 50—52
Holotype. Male (dried, pinned specimen CT-341 figured),
Indonesia, Papua Province (West Papua), Star Range, 1300 m, about
5? 00'S, 141° 00' E, 26 June 1959, Museum Leiden, Netherlands, New
Guinea exp. (RMNH).
Cartwright D.I.
Diagnosis. The male of C. oláhi can be separated from all
other New Guinea species by the combination of a distinctive
flange on the posteroventral margin of the inferior appendages
and a ventral process on segment X, which is short and acute
apically. Chimarra simbuensis sp. nov. (fig. 153) also has a
strong flange, but on the mesal margin of the inferior
appendages, and the ventral process on segment IX is a very
weak keel.
Description. General body colour and wings fawn (faded).
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 5.5 mm. Forewing with forks |, 2, 3 and 5 present,
Rs moderately sinuous or curved, moderately thickened basad of
discoidal cell; hind wing with forks 1, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view, with
rounded, weak extension ventrally (fig. 50); ventral process
short, triangular, apically acute, inserted at about half length of
ventral margin of segment IX (figs 50, 51), in lateral view length
about twice width (fig. 50); preanal appendages ovoid, rounded
apically (figs 50, 51). Segment X with sensilla not discerned
(fig. 52), lateral lobes robust, platelike, laterad of and ventral to
phallus, slightly tapered distally to rounded apices (figs 50—52).
Phallus with two slender spines included subapically (figs 50—
52). Inferior appendages robust, broadest in basal half, tapered
slightly distally, acute apices directed slightly posteromesally,
in lateral view angled at about 60° to horizontal, sub-triangular,
length about 2.6 times maximum width, ventral margin angled
obtusely in basal half, dorsal margin almost straight (fig. 50), in
ventral view slender in distal half, mesal margin angled at
about 90° near middle, narrow flange on posteroventral margin
(fig. 51).
Female. Unknown.
Etymology. Named for János Oláh for his contribution to the
study of Chimarra from Fiji and Batanta Island (Indonesia).
Remarks. Chimarra olahi is known only from the holotype
male from Papua.
Chimarra ediana sp. nov.
Figures 53—55
Holotype. Male (dried specimen, C' 1-374 figured), PNG, Morobe
Province, Edia(-e) Creek, (15 km south-west of) Wau, 200 m, about
7° ]9' S, 146° 41' E, Malaise Trap, 5-11 October 1961, J. Sedlacek
(BPBM).
Diagnosis. The male of C. ediana can be separated from all
other New Guinea species, including C. wara and C. gressetti
Sykora, by the combination of small differences in the shape of
the inferior appendages, which are broad basally, tapered
strongly in distal half and in lateral view have the ventral
margin concave in the distal half and a 90° angle basal to the
concavity.
Description. General body colour and wings fawn. Wings
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 4.8 mm. Forewing with forks 1, 2, 3 and 5 present, Rs
sinuous or curved, thickened, basad of discoidal cell.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 19
dorsal process
segment IX
mesal lobe
segment X
ak | Phallus
3
¿us
„= a 4 E.
= tf i - ET da
lateral lobe | |
L^ segment X y
4
rd FA
VA
d E
A
lateral lobe
segment X
inferior
appendage
ventral view
phallus
lateral lobe
segment X
preanal
appendage
mesal lobe
a segment X
E å dem
€ e «Td. Sd,
} | . BO Do Nd
da Gide e — S99
A. occid Ld
A
Figures 53-59. Chimarra spp.; 53-55, Chimarra ediana sp. nov., male, holotype, genitalia; 53, lateral; 54, ventral; 55, dorsal. 56, Chimarra
cyclopica Kimmins, male, genitalia; 56, lateral. 57-59, Chimarra cavata sp. nov., male, holotype, genitalia; 57, lateral; 58, ventral; 59, dorsal.
20
Male. Segment IX anterior margin 1n lateral view, with weak
angular extension ventrally, ventral process short, triangular,
apically acute, arising near base of segment IX, in lateral view
length about twice width (fig. 53); preanal appendages rounded
apically (figs 53, 54), in lateral view slightly ovoid (fig. 53).
Segment X lateral lobes laterad of or straddle phallus, laterally
compressed, with sensilla not discerned (fig. 55), in lateral
view, lobes appear sub-rectangular (fig. 54), in dorsal view
lateral lobes appear very slender in distal half (fig. 55). Phallus
with two slender spines embedded subapically (figs 53—55).
Inferior appendages robust, broadest in basal half, narrowed
forming a 90° angle near two-thirds length, tapered strongly in
distal third, apical spine directed mesally (figs 53, 54), in lateral
view angled at about 30? to horizontal, length about 2.4 times
width, ventral margin with slight concavity in distal half, dorsal
margin almost straight (fig. 53), in ventral view mesal margin
angled at about 90? near mid length (fig. 54).
Female. Unknown.
Etymology. Ediana — named for the type locality (Edia Creek).
Remarks. Chimarra ediana 1s known only from the holotype
male north-east PNG.
Chimarra cyclopica Kimmins, 1962
Figure 56
Chimarra cyclopica Kimmins, 1962: figs 8, 9.— Neboiss, 1986: 108.
lype material not seen. Holotype. Male. Indonesia, Papua
Province (formerly Dutch New Guinea), West Papua, Mount Cyclops,
3500 ft (1067 m), about 2? 31' S, 140° 31' E, March 1936, L.E.
Cheeseman (BMNH).
Material examined. 2 males (specimen in alcohol, CT-334 partly
figured), PNG, Western Highlands Province, Pengi Creek, Bayer River
sanctuary, about 5° 19' S, 144° II' E, It tr, 16 June 1986, A. Wells
(NMV); 1 male (CT-376), Indonesia, (West Papua) Ifar (Cyclops
Mountains), 300—600 m, about 2° 34' S, 140“ 31' E, 22 June 1959, J.L.
Gressitt (BPBM ).
Diagnosis. The males of C. cyclopica can be separated from all
other New Guinea species by the combination of the unique
pair of elongate dorsal processes on the ninth segment and
inferior appendages which are tapered distally, with slightly
hooked, in-turned acute apices, in ventral view.
Description (revised after Kimmins, 1962). General body
colour and wings brownish. Wings (Kimmins, 1962: fig. 8)
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 4.0—4.4 mm. Forewing with forks 1,2,3 and 5 present, Rs
moderately sinuous or curved, moderately thickened basad of
discoidal cell, hind wing with fork | apparently absent, forks 2,
3 and 5 present (Kimmins, 1962: fig. 8).
Male. Segment IX anterior margin rounded ventro-basally (fig.
56); ventral process a short, digiform projection, slightly basal
to distal margin of segment IX (fig. 56; Kimmins, 1962: fig.
9D), in lateral view length about 1.5 times width, with rounded
apex (fig. 56), in ventral view narrowly triangular, apically
acute (fig. 9D; Kimmins, 1962), preanal appendages not
discerned, but with pair of elongate dorsal processes (Kimmins,
Cartwright D.I.
1962: fig. 9A, C), in lateral view dorsal processes slender
distally, apices acute (fig. 56). Segment X with sensilla not
obvious, lateral lobes robust, plate-like, laterad of and ventral
to phallus (fig. 56; Kimmins, 1962: figs 9A, C). Phallus with one
slender spine included subapically (fig. 56; Kimmins, 1962: fig.
9B). Inferior appendages robust, broadest in basal half, slightly
tapered distally (fig. 56; Kimmins, 1962: fig. 9A, D), in lateral
view angled at about 15? to horizontal, length about 2.5 times
width, apices rounded (fig. 56) or slightly acute (Kimmins,
1962: fig. 9A), in ventral view apices meso-distally directed,
acute (fig. 56; Kimmins, 1962: fig. 9D).
Female. Unknown.
Remarks. Chimarra cyclopica 1s known from six male specimens
from three disjunct localities on the island of New Guinea, from
both northern Papua and central PNG. A new figure has been
drawn to allow direct comparison and to accompany the
description that is revised in light of new interpretations of
Chimarra genitalic structures from Kimmins’ (1962) original
description. The illustration shown here (fig. 56) differs slightly
from that of the type specimen shown in Kimmins (1962; fig. 9A)
in the shape of the posterior margin of segment IX and relative
length and shape of tergum X, but I am confident that they are
conspecific, particularly with the distinctive pair of elongate
dorsal processes on the ninth segment.
Chimarra cavata sp. nov.
Figures 57—59
Holotype. Male (dried, pinned specimen C 1-355 figured), PNG,
Central Province, Mamai Plantation, east of Port Glasgow, 150 m,
about 10° 16' S, 149° 30' E, 27 January 1965, R. Straatman (BPBM ).
Paratypes. PNG, 2 males (CT-394, CT-393 damaged), collected
with holotype (BPBM ).
Diagnosis. The males of C. cavata can be separated from all
other New Guinea species by the combination of the inferior
appendages with a prominent projection on the mid-ventral
margin, which in lateral view, partly forms a concavity in the
distal half, plus slender and incurved apices which are pincer-
like in ventral view.
Description. General body colour and wings fawn to light
brownish. Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 3.5—4.2 mm. Forewing with forks l,
2, 3 and 5 present, Rs moderately to strongly sinuous or curved,
thickened basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with broad,
angular extension ventrally (fig. 57), ventral process short,
triangular, apically acute, situated basal to distal margin of
segment IX (figs 57, 58), in lateral view length about 1.5—1.6
times width (fig. 57); preanal appendages rounded apically.
Segment X in lateral view mesal lobe partly produced dorsally
(fig. 57), narrowly bifid in dorsal view (fig. 59), lateral lobes
appear laterally compressed with sensilla not discerned (figs
57, 59), in lateral view lateral lobes robust, hard to distinguish
from phallus (fig. 57), in ventral and dorsal views appear very
slender in distal half, apices acute (fig. 58). Phallus with two
slender spines included near middle. Inferior appendages
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 21
robust, broadest in basal half, narrowed strongly near
midlength, acute apices directed posteromesally (figs 57—59),
in lateral view angled at about 45? to horizontal, length about
3.3 times width, ventral margin with a prominent pointed
projection on the mid-ventral margin that partly forms a
concavity in distal half, dorsal margin mostly straight (fig. 57),
in ventral view projection of ventral margin setose and irregular
on its mesal margin, apices slender, nearly touching (fig. 58).
Female. Unknown.
Etymology. Cavata — Latin for hollow, hollowed out (inferior
appendages).
Remarks. Chimarra cavata is known only from the type
locality in south-east PNG.
Chimarra clava sp. nov.
Figures 60-62
Holotype. Male (dried, pinned specimen CT-361 figured), PNG,
Morobe Province, Wau, Hospital Creek, 1230 m, about 7° 20' S,
146° 43' E, 16 June 1965, J. Sedlacek (BPBM).
Paratypes. PNG, 1 male, Morobe Province, Wau, 1200 m, about
7° 20' S, 146° 43' E, Malaise Trap, 8 July 1961, J. and M. Sedlacek
(BPBM); 1 male (P'T-1241), same locality and collector, 1 December
1965 (BPBM); 1 male (PT-1266), same locality, 14 February 1963, J.
sedlacek (BPBM); 1 male, Morobe Province, Wau, Big Wau Creek,
1300 m, about 7° 20' S, 146° 43' E, Malaise Trap, November 1965, J.
Sedlacek (BPBM).
Diagnosis. The males of C. clava are similar to those of C.
harpes sp. nov. and C. longpela Cartwright, the three species
all having inferior appendages elongate and club-like in lateral
view, a feature that separates them from all other New Guinea
species. Chimarra clava differs from C. harpes in that the
inferior appendages are not slightly dilated 1n the distal third
and lack the meso-apical projection and distinctive elongate
embedded phallic spine. Chimarra clava can be distinguished
from C. longpela in that the inferior appendages are less
elongate and the ventral process on the IX segment is obvious.
Description. General body colour and wings light brown to
brownish. Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 4.9—5.1 mm. Forewing with forks 1,
2, 3 and 5 present, Rs slightly to moderately sinuous or curved,
slightly thickened basad of discoidal cell.
Male. Segment VIII ventral process dorso-ventrally flattened,
apex acute (figs 60, 61), in lateral view slender (fig. 60), in
ventral view broadbased, triangular (fig. 61). Segment IX
anterior margin in lateral view, with acute angular extension
ventrally (fig. 60), ventral process short with rounded apex,
nearly level with distal margin of segment IX (figs 60, 61), in
lateral view length about 1.5—1.6 times width (fig. 60), in ventral
view partly obscured by segment VIII ventral process (fig. 61);
preanal appendages in lateral view, appear digiform with
narrowly rounded apices (fig. 60), in dorsal view, appear sub-
triangular (fig. 66). Segment X lateral lobes laterad of phallus
and hard to discern, with sensilla not discerned (figs 60, 62).
Phallus with two slender spines embedded subapically (figs
60-62). Inferior appendages robust, elongate, apices incurved
(figs 60, 61), in lateral view angled at about 30° to horizontal,
length about 5.5 times width, ventral and dorsal margins mostly
straight and parallel, apices appear broadly rounded (fig. 60), in
ventral and dorsal views mesal and lateral margins mostly
straight and parallel in basal two thirds, tapered in distal third
with apices acute (figs 61, 62).
Female. Unknown.
Etymology. Clava — Latin for club, cudgel (1nferior appendages).
Remarks. Chimarra clava 1s known from five males collected
from the Wau district 1n eastern PNG.
Chimarra newguineana sp. nov.
Figures 63-65
Holotype. Male (dried, pinned specimen CT-397 figured), PNG,
Western Highlands Province, Mount Hagen, 1600—1700 m (about
5° 52'S, 144° 13' E), September 1971, N.H. Krauss (BPBM).
Paratype. Male (in alcohol, specimen CT-714), PNG, Eastern
Highlands Province, Ukarumpa, Bai River (about 6° 34' S, 145° 88' E),
It tr, 22 June 1986, A. Wells (NMV).
Diagnosis. The males of C. newguineana are similar to those
of C. aiyura Korboot and C. sedlaceki Sykora, but can be
separated from these and all New Guinea species by the
combination of the strongly developed spine-like apicoventral
projection of the phallus (phallobase), the inferior appendages
angled vertically, with irregularly serrate meso-ventral margin,
and the lateral lobes of segment X with triangular flange in
basal half and slightly out-turned apices.
Description. General body colour and wings fawn (faded) to
light brown. Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 4.2—5.8 mm. Forewing with forks 1,
2, 3 and 5 present, Rs slightly sinuous or curved, slightly to
moderately thickened basad of discoidal cell; hind wing with
forks l, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view, with broad
rounded extension ventrally and minute extension dorsally;
ventral process short, basal to distal margin of segment IX (figs
63, 64), in lateral view keel shaped, length about |.2—1.3 times
width; preanal appendages slightly laterally flattened, appear
rounded in lateral view (fig. 63), in dorsal view, appear narrowly
ovate (fig. 65). Segment X lateral lobes slightly laterally
flattened with sensilla not discerned, broadest 1n basal half,
tapered in distal half (figs 63, 65), in ventral and dorsal views
lateral lobes with triangular flange 1n basal half (possibly with
sensilla), apices appear slightly out turned (figs 64, 65). Phallus
with two short, slender spines embedded subapically, with
spine-like apicoventral projection (figs 63, 64). Inferior
appendages slender, broadest 1n basal half with serrated ventro-
mesal margin, tapered slightly 1n distal half, with acute apices
directed dorsomesally (figs 63—65), in lateral view, angled at
about 90° vertically, length about 3 times width at base, dorsal
margin slightly concave in basal half and ventral margin
slightly, irregularly convex in basal half and almost straight 1n
distal half (fig. 63).
Female. Unknown.
22 Cartwright D.1.
! ea
do cm mesal lobe s b
1*5. = ms NE OC segment X lateral lobe ; :
| segment X uA b
LI LI
- > »
- Lj
E
MO Li
— -
Je?
~—.:- a
TAG.
Li
Tn
*
s
E E
pren
4
te e
ÁN
E E A
as e. V +
KO ri d z e O
- » LI
- à b "I = -
LI da n ZA,
p = Lj
b * i * *
, ‘ ~t b _*
- Sl» 4 E 7". * & 95,3 Ae. e ei E e
= = - a = ` '
ventral process Dd 29. ef hh FA : 3?
E * E = = Pan. E 1 ‘ e
segment IX | mirtelo o plo ta
gm ti = P Za vf D d MES
4 * a m: 2 b r
* i : t L 61 3 = D UA e
" Ea t a d T 4
A ventral process -i ts
* - Li
"B". segment VIII TED.
, LI
* " * a
Pd b, Kre SS 3 ventro-subapical
BD projection phallus
et Li 4 i . E art r
69
Figures 60—69. Chimarra spp.; 60—62, Chimarra clava sp. nov., male, holotype, genitalia; 60, lateral; 61, ventral; 62, dorsal. 63—65, Chimarra
newguineana sp. nov., male, holotype, genitalia; 63, lateral; 64, ventral; 65, dorsal. 66—69, Chimarra pindua sp. nov., male, holotype, 66—68,
genitalia; 66, lateral; 67, ventral; 68, dorsal; 69, forewing.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 23
Etymology. Newguineana — named for the locality (New
Guinea Island).
Remarks. Chimarra newguineana 1s known from only two male
specimens from the Western and Eastern Highlands of PNG.
Chimarra pindua sp. nov.
Figures 66-69
Holotype. Male (dried, pinned specimen CT-366 figured), PNG:
north-east, Morobe Province, Wau, 1250 m, about 7? 20' S, 146? 43' E,
Malaise trap, 11 August 1965, J. and M. Sedlacek (BPBM ).
Diagnosis. The male of C. pindua, together with some other
species, have forewings with a small clear, depressed area or
window basal to the discoidal cell; the New Guinea species
C. formosa Botosaneanu and de Vos has a larger, pale hyaline
area in both the forewings and the hind wings. The genitalia of
C. pindua differs from C. formosa in that the inferior
appendages are slender in C. pindua. It most closely resembles
C. sedlaceki Sykora (fig. 70) in the shape of the inferior
appendages in lateral view, but differs in that in lateral view the
inferior appendages are slightly more robust, the phallus is
slightly tapered apically and the lateral lobes of segment X are
situated slightly more dorsally with respect to the phallus.
Description. General body colour and wings brownish. Wings
similar to C. ukarumpana (fig. 7). Length of forewing: male 6.0
mm. Forewing with forks 1, 2, 3 and 5 present, small, clear
window basad of discoidal cell, and Rs sinuous or curved,
moderately thickened, basad of discoidal cell (fig. 69).
Male. Segment IX anterior margin in lateral view,
anteroventrally rounded, ventral process short (figs 66, 67), in
lateral view keel-like, length about 1.2-1.3 times width,
rounded apically (fig. 66); preanal appendages small and
rounded apically (figs 66, 68). Segment X with a pair of robust
lateral lobes, sensilla not discerned (figs 66, 68), 1n lateral view
lateral lobes rounded apically (fig. 66), in dorsal and ventral
views, appear dilated or flanged subapically (figs 67, 68).
Phallus slightly laterally compressed apically with no obvious
included spines (figs 66-68), in lateral view appears rounded
apically (fig. 66), in dorsal and ventral views appears tapered
distally and acute apically (figs 67, 68). Inferior appendages
tapered distally, with apices directed posteromesally (figs 66—
68), nearly meeting dorsal to phallus (fig. 68), in lateral view,
angled at about 60° to horizontal, length about 4.5 times width,
broadest near middle, ventral margin irregular (fig. 66).
Female. Unknown.
Etymology. Pindua — New Guinea pidgin for window (small,
clear window in forewings).
Remarks. Chimarra pindua is known only from the holotype
male from eastern PNG.
Chimarra sedlaceki Sykora, 1967
Figures 70—71
Chimarra sedlaceki Sykora, 1967: 588, fig. 3.—Neboiss, 1986: 106.
Type material not seen. Holotype. Male. North-east New Guinea
(PNG), Wau, 1500 m (about 6° 20' S, 145° 53' E), at light, 10 October
1966, J. Illies (Bishop 7470).
Material examined. PNG. 1 male (dried, pinned specimen P'T-1252
figured), Wau, Morobe District, 1200 m (7° 20' S, 146° 43' E), Malaise
trap, 25 October 1965, J.M. Sedlacek (BPBM); 1 male (dried, pinned
specimen CT-713), Wau, Morobe District, 1250 m (7? 20'S, 146° 43' E),
Malaise trap, 20 March 1965, J.M. Sedlacek (BPBM); 2 males (C 1-716;
Western Highlands Province), Baiyer River Sanctuary, Trauna River,
5° 35'S, 144° 10' E, UV light, 17 June 1986, A. Wells (NMV); 4 males,
(Western Highlands Province), Baiyer River Sanctuary, Trauna River,
1160 m, 5° 30'S, 144? 10' E, UV light, 16 June 1986, A. Wells (NMV).
Diagnosis. The males of C. sedlaceki can be separated from all
other New Guinea species, including C. pindua, C. aiyura and
C. newguineana, by the combination of the slender, almost
perpendicular inferior appendages, the lateral lobes of segment
X with the out turned subapical flange and the short, apically
rounded ventral process on segment IX.
Description (revised after Sykora, 1967). General body colour
and wings light brown to brownish. Wings (Sykora, 1967: fig. 3)
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 5.0—7 mm. Forewings with forks |, 2, 3 and 5 present, Rs
slightly to moderately sinuous or curved, moderately thickened
basad of discoidal cell, and fork 1 with short footstalk (Sykora,
1967: fig. 3) or sessile (personal observation); hind wing with
forks l, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view, with rounded
extension ventrally, ventral process short, basal to distal margin
of segment IX, in lateral view, short, keel-shape, length about 1.2
times width (fig. 70; Sykora, 1967: fig. 3A), preanal appendages,
relatively large, slightly laterally compressed (figs 70, 71), in
lateral view appear rounded (fig. 70), in dorsal view appear
elongate with rounded apices (fig. 71). Segment X lateral lobes
situated slightly below phallus in distal third, slightly rounded
apically, with sensilla not discerned (figs 70, 71), in lateral view,
robust basally, narrowed in distal third (fig. 70), in dorsal view,
with triangular flange subapically (fig. 71). Phallus with one or
two short spines embedded subapically (figs 70, 71; Sykora, 1967:
fig. 3D) and broadbased ventral projection (in lateral view,
obscured by lateral lobe of segment X; fig. 70; Sykora, 1967: fig.
3A). Inferior appendages slender, broadest in basal third, narrowed
slightly near middle, tapered slightly 1n distal half, with apices
acute and directed posteromesally (figs 70, 71), in lateral view
angled at about 75? to horizontal, length about 5 times width,
dorsal margin almost straight and ventral margin slightly irregular
in basal half, obtusely angled near middle and almost straight 1n
distal half (fig. 70; Sykora, 1967: fig. 3A), 1n dorsal view, strongly
angled near middle, mesal margin curved (fig. 71).
Female. Unknown.
Remarks. Chimarra sedlaceki is known from nine males
from three localities in north-east PNG and two sites about
420 km west in the Western Highlands of PNG. New figures
have been drawn to allow direct comparisons and to
accompany the description that is revised in light of new
interpretations of Chimarra genitalic structures from Sykora's
(1967) original description.
24 Cartwright D.I.
Figures 70—77. Chimarra spp.; 70-71, Chimarra sedlaceki Sykora, male, genitalia; 70, lateral; 71, dorsal. 72—74, Chimarra morobensis sp. nov., male,
holotype, genitalia; 72, lateral; 73, ventral; 74, dorsal. 75-77, Chimarra damma sp. nov., male, holotype, genitalia; 75, lateral; 76, ventral; 77, dorsal.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 20
Chimarra morobensis sp. nov.
Figures 72—74
Holotype. Male (dried, pinned specimen CT-359 figured), PNG,
Morobe District, Wau, 1200 m, about 7° 20' S, 146° 43' E, Malaise
Trap, 7 July 1961, J. Sedlacek (BPBM).
Diagnosis. The male of C. morobensis can be separated from
all other New Guinea species, including C. sappela, by the
combination of the robust pincer-like inferior appendages, with
ventral margin angled obtusely near middle, tapered in distal
half, with slender, meso-distally pointed digitiform apices, in
lateral view, plus the ventrad directed ventral lobes of segment
X, convergent ventrally supporting the phallus.
Description. General body colour and wings fawn. Wings
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 4.9 mm. Forewings with forks 1, 2, 3 and 5 present, Rs
sinuous or curved, thickened, basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with acute
angular extension ventrally and small rounded extension
dorsally (fig. 72), ventral process short, laterally compressed,
basal to distal margin of segment IX (figs 72, 73), 1n lateral
view appears rounded apically, length about 1.1 times width
(fig. 72), 1n ventral view appears triangular, apically acute (fig.
73), preanal appendages, in lateral view appear sub-rectangular
(fig. 72), 1n dorsal view appear sub-triangular (fig. 74). Segment
X lateral lobes aligned laterad to phallus, hard to discern, with
sensilla not discerned (figs 72, 74), in lateral view, ventral
lobes slightly angled downwards, supporting phallus, apices
appear acute (fig. 72). Phallus with two slender, relatively
elongate spines embedded subapically (figs 72-74). Inferior
appendages elongate, broadest in basal half, narrowed near
midlength, tapered distally, apices acute, directed
posteromesally (figs 72-74), in lateral view, angled at about
30° to horizontal, length about 4 times width, dorsal margin
almost straight (fig. 72), in ventral view, lateral margins
curved, mesal margin irregular near midlength, slightly
concave in distal half (fig. 73).
Female. Unknown.
Etymology. Morobensis — Named after the type locality
(Morobe Province).
Remarks. Chimarra morobensis is known from the type
locality 1n north-east PNG.
Chimarra damma sp. nov.
Figures 75-77
Holotype. Male (dried, pinned specimen CT-409 figured), PNG,
New Britain, Gazelle Peninsula, Gaulim, 140 m, about 4° 44' S,
152° 08' E, Malaise Trap, 21-27 October 1962, J. Sedlacek (BPBM).
Diagnosis. The male of C. damma can be separated from all
other New Guinea species, including the somewhat
superficially similar C. kebarana, by the combination of the
bifid apices on the plate-like lateral lobes of segment X and the
short inferior appendages, with the ventral margin slightly
curved in lateral view.
Description. General body colour and wings fawn or light
brownish. Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 4.6 mm. Forewings with forks 1, 2, 3
and 5 present, Rs moderately sinuous or curved, thickened,
basad to discoidal cell.
Male. Segment IX anterior margin in lateral view, with weak
angular extension ventrally (fig. 75), ventral process short,
basal to distal margin of segment IX (figs 75, 76), in lateral
view triangular, length about same as width, preanal
appendages, relatively large, in lateral view ovate with rounded
apices (fig. 75). Segment X lateral lobes appear rod-like but are
plate-like laterad of phallus, apices bifid, situated ventral to
phallus, sensilla not discerned (figs 75—77). Phallus (with
endotheca possibly not fully everted) with two slender spines
included subapically and small field of short spines appear
apically (figs 75-77). Inferior appendages short, broadest
basally, tapered slightly distally, strongly incurved in about
apical third, apices acute (figs 75, 76), in lateral view appear
sub-ovate, angled at about 60° to horizontal, length about 3
times width, dorsal margin almost straight and ventral margin
slightly convex (fig. 75), in ventral view obtusely angled on
basomesal margin, mesal and lateral margins curved meso-
distally (fig. 76).
Female. Unknown.
Etymology. Damma — Latin for gazelle or deer (type locality —
Gazelle Peninsula).
Remarks. Chimarra damma is known from one locality on
north-east New Britain Island, PNG.
Chimarra aiyura Korboot, 1965
Figures 78, 79
Chimarra aiyura Kooboot, 1965: 40, figs 1—4.—Neboiss, 1986a:
105.—Neboiss, 1987a: 132, figs 4—6.
Type material not seen. Holotype. Male. PNG, Eastern Highlands,
A1yura, 5500 feet (1676 m, 6° 20' S, 145° 53' E), 12 September 1960,
J.H. Barrett (QM, T-6205).
Paratype. PNG, male (gen prep. PT-1307 figured in Neboiss,
1986a, 19872), collected with holotype (Deptartment of Entomology,
University of Queensland).
Material examined. 1 male (in alcohol, specimen CT-348 partly
figured), PNG: Eastern Highlands, Ukarumpa, Bai River (about
6° 34'S, 145° 88' E), It tr, 22 June 1986, A. Wells (NMV).
Diagnosis. The males of C. aiyura can be separated from
C. newguineana and C. sedlaceki, in particular, and all other
New Guinea species, by the combination of the inferior
appendages in lateral view angled at about 30° to horizontal
with irregular, serrated meso-ventral margin and the lateral
lobes of segment X with triangular flanges in the basal half and
slightly out turned apices and the emergent apical spine on the
phallus (or acute ventromesal projection of the phallobase?).
Description (revised after Korboot, 1965, Neboiss, 19872).
General body colour and wings fawn (faded; personal
observation) to yellowish head and thorax with blackish wings
(Korboot, 1965: p. 40). Wings (Korboot, 1965: fig. 1) similar to
26 Cartwright D.I.
mesal lobe
segment X
phallus
lateral lobe
ventral segment ^
projection
phallus
Figures 78-85. Chimarra spp.; 78—79, Chimarra aiyura Korboot, male, genitalia; 78, lateral; 79, dorsal. 80—82, Chimarra bicuspidis sp. nov., male,
holotype, genitalia; 80, lateral; 81, ventral; 82, dorsal. 83—85, Chimarra bifida sp. nov., male, holotype, genitalia; 83, lateral; 84, ventral; 85, dorsal.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 21
those of C. ukarumpana (fig. 7). Length of forewing: male 5.5—
5.7 mm. Forewings with forks 1, 2, 3 and 5 present, Rs straight,
not thickened (Korboot, 1965: fig. 1) to slightly sinuous or
curved, moderately thickened, basad of discoidal cell (personal
observation); hind wing with forks 1, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view, anteroventrally
weakly angled or rounded, ventral process short, basal to distal
margin of segment IX, in lateral view, keel-like, length about
same as width, preanal appendages with rounded apices, in lateral
view appear rounded (fig. 78; Neboiss, 1987a: fig. 4), in dorsal
view appear ovate (fig. 79). Segment X lateral lobes laterally
compressed with sensilla not discerned (figs 78, 79), ın dorsal
view, lateral lobes appear slender with small, triangular flange in
basal half, apices slightly out turned (fig. 79; Neboiss, 1987a: fig.
5). Phallus with two slender spines included subapically and one
emergent apical spine (or acute ventromesal projection of the
phallobase?; figs 78, 79; Neboiss, 1987a: figs 4, 6). Inferior
appendages slender, broadest in basal third, narrowed slightly
near middle, tapered slightly in distal half, apices acute and
directed slightly posteromesally (figs 78, 79), in lateral view,
angled at about 30° to horizontal, length about 3.3 times width,
dorsal margin slightly concave in basal half and ventral margin
slightly irregularly convex in basal half and almost straight in
distal half (fig. 78; Neboiss, 1987a: fig. 4), in dorsal view, mesal
and lateral margins slightly curved (fig. 79; Neboiss, 1987a: fig. 5).
Female. Unknown.
Remarks. Chimarra atyura is known from three males from
two adjacent localities in the Eastern Highlands of PNG. New
figures have been drawn to allow direct comparisons and to
accompany the description that is revised in light of new
interpretations of Chimarra genitalic structures from Korboot’s
(1965) original and Neboiss’ (1987a) revised description.
Neboiss examined the holotype abdomen mounted on a slide
but found the individual appendages difficult to interpret, so he
cleared the paratype abdomen, compared it with the holotype
and prepared new figures (Neboiss 1987a: 132; figs 4—6). I have
followed Neboiss’ interpretation and figures.
Chimarra bicuspidis sp. nov.
Figures 80—82
Holotype. Male (specimen in alcohol, C1-349, figured), PNG,
Central Province, Aieme River, about 9? 25'S, 147° 15' E, net, 23 June
1986, A. Wells (NMV, 1-224585).
Diagnosis. The male of C. bicuspidis is similar to C. bifida and
C. kokodana Kimmins in the bifid apices on the inferior
appendages, but can be separated from the latter two and all
other New Guinea species by the combination of the inferior
appendages being relatively straight, angled at about 70° to
horizontal in lateral view and with bifid apices.
Description. General body colour and wings pale (faded).
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.5 mm. Forewing with forks l, 2, 3 and 5
present, Rs not sinuous or curved, slightly thickened, basad of
discoidal cell; hind wing with forks 1, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally broadly rounded, ventral process short, basal to
distal margin of segment IX, in lateral view, appears triangular,
apex acute, length about 0.8 times basal width (fig. 80), in
ventral view appears rounded apically (fig. 81), preanal
appendages ovate (figs 81, 82). Segment X with lateral lobes
(difficult to discern) relatively long, laterally compressed,
aligned laterally and mostly adpressed to phallus, apices acute,
sensilla not discerned (figs 80, 82), in lateral view, lateral lobes
appear ovate (fig. 80), in dorsal and ventral views, appear
slender, dilated or flanged subapically (figs 81, 82). Phallus
without any included spines discerned, but with robust ventral
projection (or acute ventromesal projection of the phallobase?)
subapically (figs 80, 81). Inferior appendages slender, broadest
in basal third, tapered slightly in distal two thirds, apices bifid
and directed posteromesally (figs 80, 82), in lateral view, angled
at about 70° to horizontal, length about 4.5 times width, dorsal
margin slightly concave, ventral margin mostly straight (fig.
80), in dorsal view, mesal and lateral margins curved (fig. 82).
Female. Unknown.
Etymology. Bicuspidis — Latin for two points (of a spear; apices
of inferior appendages).
Remarks. Chimarra bicuspidis is known only from the type
locality in south-east PNG.
Chimarra bifida sp. nov.
Figures 83—85
Holotype. Male (dried, pinned specimen CT-384 figured),
Indonesia, Papua Province, W Sentani, 75 m, about 2° 36'S, 140° 37' E,
June 1959, T.C. Maa (BPBM ).
Paratypes. | male (dried, pinned specimen CT-385), Indonesia,
Papua Province, collected with holotype (BPBM); 1 male (in alcohol,
specimen CT-710), PNG, Western Highlands, Baiyer River Sanctuary,
Trauna River, 5 35' S, 144 10' E, UV light, 17 June 1985, A. Wells
(NMV).
Diagnosis. The males of C. bifida are similar to C. kokodana
and C. bicuspidis 1n the bifid apices on the inferior appendages
but can be separated from the latter two and all other New
Guinea species, including C. sinuosa, by the combination of
features on the inferior appendages, which in lateral view are
sinusoidal with bifid apices.
Description. Male. General body colour and wings light
brownish. Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 4.5—4.7 mm. Forewing with forks 1,
2, 3 and 5 present, Rs straight, not sinuous or curved, slightly
thickened, basad of discoidal cell.
Male genitalia. Segment IX anterior margin in lateral view,
anteroventrally rounded (fig. 83), ventral process short,
triangular, apex acute, basal to distal margin of segment IX
(figs 83, 84), in lateral view, length about 0.7-0.8 times width,
preanal appendages small, ovate (fig. 83). Segment X lateral
lobes laterally compressed in basal half, apices narrowly
rounded, with sensilla not discerned (figs 83—85), 1n lateral
view, lobes broadest in basal half, narrowed strongly near
20
middle, slender in distal third (fig. 83), in dorsal and ventral
views mostly adpressed to phallus (figs 84, 85). Phallus without
any spines discerned. Inferior appendages broadest in basal
half, tapered slightly distally, apices bifid, directed
posteromesally (figs 83-85), in lateral view, angled near
perpendicularly, sinusoidal, dorsal margin convex, ventral
margin convex in basal half, concave in distal half (fig. 83).
Female. Unknown.
Etymology. Bifida — Latin for forked, split, divided into two
parts (apices of inferior appendages).
Remarks. Chimarra bifida is known from three males collected
from both north-east West Papua and central PNG. The two
sites are separated by about 530 km in a straight line.
Chimarra biramosa Kimmins, 1957
Figure 86
Chimarra biramosa Kimmins, 1957: 292; figs 4a, 5.—Neboiss,
1986: 108.— Cartwright, 2001: 225, figs 10—12, 16, 21.
lype material not seen. Holotype. Male, Solomon Islands,
Guadalcanal Island, Tapenanje, 10-15 December 1953, J.D. Bradley
(BMNH).
Material examined. PNG. 1 male (in alcohol, specimen CT-333 partly
figured), Western Highlands District, Pengi Creek, Bayer River
Sanctuary, about 5° 31' S, 144° 11' E, lt tr, 16 June 1986, A. Wells
(NMV).
Diagnosis. The males of C. biramosa and C. felkora Olah can
be separated from all other New Guinea species, by the
branched inferior appendages, in lateral view. Chimarra
felkora differs from C. biramosa 1n that the dorsal branch of
the inferior appendage is strongly hooked, not straight or
inclined as in C. biramosa.
Description (revised after Kimmins, 1957; Cartwright, 2001).
General body colour and wings pale (faded) to brownish.
Wings (Kimmins, 1957: fig. 4A) similar to those of C.
ukarumpana (fig. 7). Length of forewing: male 4.1—4.5 mm.
Forewing with forks 1, 2, 3 and 5 present, Rs moderately
sinuous or curved, moderately thickened, basad of discoidal
cell (Kimmins, 1957: fig. 4A); hind wing with forks 1, 2, 3 and
5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally angular or sub-truncate (fig. 86; Kimmins,
1957: fig. 5A), ventral process short, basal to distal margin of
segment IX (fig. 86), in lateral view, semi-triangular, apex sub-
acute (fig. 86; more rounded distally in Kimmins, 1957: fig. 5A;
Neboiss, 1986a: fig. p. 108), length about 0.6-0.7 width, preanal
appendages, ovate (fig. 86; Kimmins, 1957: figs SA, 5B).
Segment X lateral lobes laterally compressed with sensilla not
discerned, in lateral view, robust, apices slightly downturned
(fig. 86; Kimmins, 1957: fig. 5A; Neboiss, 1986a: fig. p. 108), in
dorsal view lateral lobes slender, apices acute, slightly in turned
(Cartwright, 2001: fig. 12; Kimmins, 1962: fig. 5B). Phallus
with one slender spine included subapically and a larger
emergent (asymmetric) spine more basally (fig. 86; Cartwright
2001: figs 10—12; Kimmins, 1957: fig. 5B). Inferior appendages
Cartwright D.I.
branched, in lateral view, ventral branch directed nearly
horizontally, dorsal branch directed almost vertically (fig. 86;
Kimmins, 1962: fig. SA; Neboiss, 1986a: fig. p. 108), in ventral
view sub-ovate, apices acute (Cartwright, 2001: fig. 11;
Kimmins, 1962: fig. 5C; Neboiss, 1986a: fig. p. 108).
Female. Described by Kimmins, 1957 (fig. 5D; Cartwright,
2001: fig. 21; Neboiss, 1986a: fig. p. 108).
Remarks. Chimarra biramosa 1s known from many males (and
females) from the Solomon Islands (Johanson and Espeland,
2010; Kimmins, 1957) and PNG - Bougainville Island
(Cartwright, 2001), New Britain (Oláh and Mey, 2013) and
Western Highlands District. A new figure has been drawn to
allow direct comparisons and to accompany the description
that is revised in light of new interpretations of Chimarra
genitalic structures from Kimmins’ (1957) original and
Cartwright’s (2001) revised description. The one mainland
PNG male specimen illustrated in this study, differs slightly
from the type specimen. In Kimmins’ (1957) figure, the dorsal
branch of the bifid inferior appendages, in lateral view, appears
more robust than the ventral; in Cartwright’s (2001) figure, the
dorsal and ventral branches appear nearly equally robust, but in
the specimen studied here (fig. 86), the ventral branch appears
more robust than the dorsal. These differences may be real or a
matter of perspective in the different drawings.
Chimarra kewabi sp. nov.
Figures 87-89
Holotype. Male (dried, pinned specimen CT-405 figured), PNG,
southern Highlands District, Mount Ialibu, 2650 m?, about 6° 15' S,
144° 03' E, 8-14 September 1968, J.L. Gressitt (BPBM ).
Diagnosis. The male of C. kewabi can be separated from all
other New Guinea species, including C. sinuosa and C. falcata,
by the combination of characters that include the lateral lobes
of segment X, which are dorso-ventrally flattened 1n the distal
half in lateral view, with two small projections (sensilla?)
subapically (like C. sinuosa), but 1n dorsal and ventral views,
they are dilated 1n the distal half and the inferior appendages
are slender, inflexed apically, almost positioned perpendicularly
and tapered gradually distally, 1n lateral view.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 6.8 mm. Forewing with forks 1, 2, 3 and 5
present, Rs slightly sinuous or curved, slightly thickened, basad
of discoidal cell; hind wing with forks 1, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally broadly rounded (fig. 87), ventral process short,
sub-triangular, apex acute, apex nearly level with distal margin
of segment IX (figs 87, 88), in lateral view, length about 0.7
width, preanal appendages slightly laterally flattened, in lateral
view, rounded (fig. 87), in dorsal view, appear rod-shaped (fig.
89). Segment X lateral lobes slightly dorso-ventrally flattened
in distal half, apices slightly outwardly angled, in lateral view,
broadest in basal half, tapered in distal half, with two subapical
projections (sensilla?; fig. 87), in dorsal and ventral views, lobes
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae)
29
à o"
i LJ
E
i à E edi
3
-= E ea WP aT aa
i LI n
LJ
P 1 [] sa";
b i.
. s * [1 ü & è
E 5 " , - aves ë e av
a
e "T. ' " ' b "on ET e ed
E
A , * è Bes , E à p aaf,
r = t a
r ki E LJ = 3
" - Ly e a "LL
LI aĥ
b ù r " E Ŝe ae
. + b -
L ' , r
' ° LA
a i
E Li - 2
LZ b
ue e"
i » 'd l'lat
- i Orsal lateral IODE
a LI , * f " 4 r | |
Laj "Ij E a ? | „
e" & d - 5 i: NTAS -
PULS, 2 as: segment X
- ' E: " E LI a
a e ; * 1 = a 4 » T u à
“
= =
ml 3 "
y |
= -
qt "ventral'
NO Adda lateral labe
| segment X
t
AS
i
PPPA’:
b ele B EA
.
E kaj
4
Li
- *
La
*
^
LJ
^ |
a btt
E lai
= e ulis
E
1
b
ar E =
zn
Figures 86-93. Chimarra spp.; 86, Chimarra biramosa Kimmins, male, genitalia, lateral. 87-89, Chimarra kewabi sp. nov., male, holotype,
genitalia; 87, lateral; 88, ventral, 89, dorsal. 90: Chimarra ulmeri Kimmins, male, genitalia, lateral. 91-93, Chimarra bicornis sp. nov., male,
holotype, genitalia; 91, lateral; 92, ventral; 93, dorsal.
30
robust, slightly dilated with curved margins in distal half (figs
88, 89). Phallus with one short, slender spine embedded
subapically (figs 87, 89). Inferior appendages broadest 1n basal
half, tapered distally, apices acute and directed posteromesally
(figs 87—89), in lateral view, angled nearly vertically at about
80° to horizontal, length about 4 times width at base, dorsal and
ventral margins mostly straight (fig. 87), in dorsal view, mesal
and lateral margins angled near midlength (fig. 89).
Female. Unknown.
Etymology. Kewabi — named for the native PNG language
spoken ın the area near the type locality.
Remarks. Chimarra kewabi is known from the type locality in
central PNG.
Chimarra ulmeri Kimmins, 1962
Figure 90
Chimarra ulmeri Kimmins, 1962: 114; figs 15, 16.— Neboiss,
1986: 106.
Type material not seen. Holotype. Male (dried, pinned specimen),
PNG, Kokoda, 1200 ft (366 m), June—July 1933, L.E. Cheeseman
(BMNH).
Material examined. PNG. 1 male (dried, pinned specimen CT-401
partly figured), Oro District, Kokoda, 400 m, about 8° 53' S, 147? 45' E,
15-20 November 1965, J. and M. Sedlacek (BPBM); 3 males (CT-335),
(Morobe Province) Bullolo, Taun Creek, about 7° 10' S, 146° 38' E,
UV light, 4 June 1986, A. Wells (NMV).
Diagnosis. The males of C. ulmeri can be separated from all
other New Guinea species, including C. bicornis, by the
sclerotised branches of the lateral lobes of segment X, which
are both hooked dorsally (Kimmins, 1962: figs 16A, 16B) or
posterodorsally, in lateral view.
Description. General body colour and wings fawn or light
brownish. Wings (Kimmins, 1962: fig. 15); similar to those of
C. ukarumpana (fig. 7). Length of forewing: male 4.7—5.7 mm.
Forewing with forks l, 2, 3 and 5 present, Rs moderately
sinuous or curved, moderately thickened basad of discoidal cell
(Kimmins, 1962: fig. 15); hind wing with forks 1, 2, 3 and 5
present.
Male genitalia. (Revised after Kimmins, 1962). Segment IX
anterior margin in lateral view, anteroventrally rounded (fig.
90; Kimmins, 1962: fig. 16A), ventral process in lateral view
short, sub-triangular, basal to distal margin of segment IX,
length about 0.6—0.7 width, preanal appendages, in lateral
view, rounded (fig. 90; Kimmins, 1962: fig. 16A), in dorsal
view, appear rod-like (Kimmins, 1962: fig. 16B). Segment X
lateral lobes branched, with sensilla not discerned, in lateral
view dorsal lateral lobe sclerotised, slender and slightly (fig.
90) or strongly upturned distally (Kimmins, 1962: fig. 16A),
slightly out turned distally in dorsal view (Kimmins, 1962: fig.
16B), ventral lateral lobe slightly laterally compressed
(Kimmins, 1962: figs 16A, B), in lateral view upturned (fig. 90),
in dorsal view, slender and diverging posteriorly (Kimmins,
1962: fig. 16B). Phallus with two slender spines included
subapically and a larger partly emergent spine from the apex of
Cartwright D.I.
the phallobase. Inferior appendages broadest in basal half,
tapered distally, apices acute and directed slightly
posteromesally (fig. 90; Kimmins, 1962: figs 16A, C), in lateral
view angled about 30—45° to horizontal, length about 2.5-2.8
times width, sinusoidal, dorsal margin slightly convex, ventral
margin concave in distal half (fig. 90; Kimmins, 1962: fig.
16A), in ventral view lateral margin strongly convex, mesal
margin irregularly concave (Kimmins, 1962: fig. 16C).
Female. Unknown (3 females collected with the holotype are
referred with. some doubt to this species, but undescribed
(Kimmins, 1962: p. 115).
Remarks. Chimarra ulmeri is known from five males (and
three females?) from three localities in the Oro and Morobe
Districts of eastern PNG. A new figure has been drawn to allow
direct comparisons and to accompany the description that 1s
revised in light of variations in Chimarra genitalic structures
from Kimmins' (1962) original description. The new specimens
differ slightly from the type specimen in the shape of the
branched lateral lobes of segment X, but I feel are still best
placed with C. ulmeri.
Chimarra bicornis sp. nov.
Figures 91—93
Holotype. Male (figured specimen CT-364), PNG (Morobe
Province), Wau, Big Wau Creek, 1300 m, about 7° 20' 5, 146° 43' E,
November 1965, P. Shanahan (BPBM).
Diagnosis. Chimarra bicornis is similar to C. ulmeri but
different to all other New Guinea Chimarra species in having
a pair of sclerotised, curved dorsal and ventral branches of the
lateral lobes on segment X. In C. ulmeri, the apices of the
dorsal or upper branch of the lateral lobes are directed dorsally
(Kimmins, 1962: fig. 16A; Neboiss, 1986a: fig. p. 106) or
posterodorsally (fig. 90), whereas in C. bicornis, they are
directed dorso-laterally. (There is also a species from northern
Australia with a similar pair of curved mesal processes on
segment X — C. adaluma Cartwright [Cartwright, 2002]).
Description. General body colour and wings brownish. Wings
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 5.9 mm. Forewing with forks 1, 2, 3 and 5 present, Rs slightly
sinuous or curved, slightly thickened, basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with rounded
extension anteroventrally (fig. 91), ventral process small, sub-
triangular, situated basally on segment IX (figs 91, 92), in
lateral view, length about 0.6 times width (fig. 91). Segment X
lateral lobes sclerotised, short, slender, with dorsal and ventral
branches, dorsal branch directed dorso-laterally, ventral branch
directed ventro-posteriorly, with sensilla not discerned (figs 91,
93). Phallus with two slender spines included subapically (figs
92, 93). Inferior appendages short, robust, acute apices angled
dorso-mesally (figs 91—93), in lateral view, angled at about 45°
to horizontal, subquadrate, length about 2.5 times width,
broadest in distal half, tapered slightly basally (fig. 91), 1n
ventral view, appear sub-ovate, length about 2.8 times width
(fig. 92).
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 31
Female. Unknown.
Etymology. Bicornis — Latin for two horned, two pronged
(paired curved, dorsal branches of lateral lobes on segment X).
Remarks. Chimarra bicornis is known only from the holotype
male in north-east PNG.
Chimarra sinuosa Kimmins, 1962
Figure 94
Chimarra sinuosa Kimmins, 1962: 118; figs 21, 22.—Neboiss,
1986: 105.
Type material not seen. Holotype. Male. Indonesia, Papua
Province, Cyclops Mountains, Sabron, Camp 2, 2000 ft (about 610 m),
July 1936, L.E. Cheesman (BMNH).
Material examined. Indonesia. | male (dried, pinned specimen CT-381
partly figured), Papua Province, Hollandia area, Sentani, 90 m, about
2^ 36' S, 140° 37' E, Malaise trap over stream, 15-18 June 1959,
collector unknown (Gressitt or Maa?; BPBM).
Diagnosis. The males of C. sinuosa are similar to C. bifida in
the sinusoidal shape of the inferior appendages, and to
C. kewabi in the shape of the lateral lobes of segment X, with
two subapical projections (sensillae?) in lateral view. C. sinuosa
can be separated from C. bifida and C. kewabi and all other
New Guinea species by the combination of these two characters
and inferior appendages with simple, acute, inflexed apices.
Description. (Revised after Kimmins, 1962). General body
colour and wings light brownish. Wings (Kimmins, 1962: fig.
21), similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.7 mm (Kimmins, 1962: p. 118). Forewing
with forks |, 2, 3 and 5 present, Rs slightly sinuous or curved,
moderately thickened, basad of discoidal cell (Kimmins, 1962:
fig. 21); hind wing with forks 1, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally broadly rounded (fig. 94), ventral process short
triangular (Kimmins, 1962: fig. 22A), basal to distal margin of
segment IX, in lateral view, length about 0.6 times basal width
(fig. 94), preanal appendages ovate. Segment X lateral lobes
with two subapical projections (sensilla?; fig. 94, Kimmins,
1962: figs 22A, B), in lateral view, lateral lobes robust, broadest
in basal half, narrowed in distal half. Phallus without any
obvious included spines. Inferior appendages slender, broadest
basally, with acute apices directed posteromesally (fig. 94,
Kimmins, 1962: figs 22A, B), in lateral view angled at about
45° to horizontal, slightly tapering in basal half, almost
uniformly narrow and sinusously curved in apical half (fig. 94),
in dorsal view, mesal and lateral margins curved (Kimmins,
1962: figs 22B, C; Neboiss, 1986a: fig. p. 105).
Female. Unknown.
Remarks. Chimarra sinuosa 1s known only from two male
specimens from two localities in the north-east of West Papua.
A new figure has been drawn to allow direct comparisons and
to accompany the description that is revised in light of new
interpretations of Chimarra genitalic structures from Kimmins’
(1962) original description.
Chimarra karimui sp. nov.
Figures 95—97
Holotype. Male (dried, pinned specimen CT-388 figured), PNG,
Western Highlands Province, Karimui (south-west of Goroka), about
6° 32'S, 144° 47' E, It tr, 3 April 1963, J.L. and M. Gressitt (BPBM ).
Paratype. PNG. 1 male (dried, pinned specimen CT-373), Western
Highlands Province, Karimui, south of Goroka, 1000 m, about
6° 32'S, 144° 47' E, It tr, 2 June 1961, J.L. and M. Gressitt (BPBM).
Diagnosis. The males of C. karimui can be separated from all
other New Guinea species, including C. sinuosa and C. wara,
by a combination of features, including the lateral lobes of
segment X, with apex laterally directed and acute with a small
preapical process (possibly sensilla-bearing), and likely on the
ventral margin and the inferior appendages, which are broad
basally, tapered gradually and slender in the distal half with
acute apices.
Description. General body colour and wings fawn to light
brown. Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 5.7—6.1 mm. Forewing with forks 1,
2,3 and 5 present, Rs moderately to strongly sinuous or curved,
thickened, basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with
narrowly rounded extension ventrally (fig. 95), ventral process
short, basal to distal margin of segment IX (figs 95, 96), in
lateral view sub-triangular, length about 0.6 times width,
preanal appendages fused basally, rounded apically (fig. 95).
Segment X lateral lobes with apex laterally directed and acute
with a small preapical process (possibly sensilla-bearing), and
likely on the ventral margin (figs 96, 97), in lateral view appears
broad basally, narrowed near middle (fig. 95). Phallus with no
included spines obvious. Inferior appendages broadest in basal
half, tapered and slender distally, apices very acute, directed
slightly posteromesally (figs 95-97), in lateral view, angled
nearly vertically at about 80° to horizontal, length about 3
times maximum width, ventral margin angled strongly 1n basal
third, dorsal and ventral margins curved in distal half (fig. 95),
in dorsal and ventral views, mesal and lateral margins straight
to very slightly curved in distal half (figs 96, 97).
Female. Unknown.
Etymology. Karimui — named for the type locality (Karimur).
Remarks. Chimarra karimui is known from two males from
near the type locality in central PNG.
Chimarra laensis sp. nov.
Figures 98, 99
Holotype. Male (dried, pinned specimen CT-369 figured), PNG,
Morobe District, Lae, Singnawa River, 30 m (6° 45' S, 147° IU E), 3
April 1966, It tr Kunai grass, O.R. Wilkes (BPBM).
Diagnosis. The male of C. laensis can be separated from all other
New Guinea species, including C. aiyura, by the combination of
the irregular, almost broadly serrated meso-ventral margin on the
inferior appendages and the absence of a flange 1n the basal half
of the lateral lobes of segment X, in dorsal view.
32 Cartwright D.I.
*
ame
'
m
[LI
—
" a
-
LI
E
la
"
3
Aik
EA a
,
—
x
"
4
i”
=
5
” E
J ;
Je e e du
4
E
Li
E
JK
u
-
&
=
© Je
LI
LI
d
so
DN
^M
t LI
"
Ld 4
"
E
dd
do
E
uir
-
i
"
E]
1
"
d.
5
ZA
ku
'dorsal' lateral
lobe segment X
LO LE
ventral process
of phallus
‘ventral’
lateral lobe
segment X
Figures 94-102. Chimarra spp.; 94, Chimarra sinuosa Kimmins, male, genitalia, lateral. 95-97, Chimarra karamui sp. nov., male, holotype,
genitalia; 95, lateral; 96, ventral; 97, dorsal. 98-99, Chimarra laensis sp. nov., male, holotype, genitalia; 98, lateral; 99, dorsal. 100—102, Chimarra
sappela sp. nov., male, holotype, genitalia; 100, lateral; 101, ventral; 102, dorsal.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 33
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.9 mm. Forewing with forks 1, 2, 3 and 5
present, Rs very slightly sinuous or curved, thickened, basad of
discoidal cell.
Male. Segment IX anterior margin in lateral view,
anteroventrally broadly angular or sub-truncate, ventral process
short, basal to distal margin of segment IX, in lateral view,
keel-like, length about 0.6 times basal width, preanal
appendages, slightly laterally compressed, appear rounded in
lateral view (fig. 98), in dorsal view appear ovate (fig. 99).
Segment X lateral lobes laterally compressed in basal three
quarters, appear truncate distally, with sensilla not discerned
(figs 98, 99), in lateral view robust (fig. 98), in dorsal view
lateral lobes appear slender. Phallus with two short, slender
spines included subapically and spine-like ventral process
(apex of phallobase?; fig. 99). [Inferior appendages short with
apices acute, angled slightly posteromesally (figs 98, 99) in
lateral view, broadest in basal half, tapered slightly distally,
angled at about 45° to horizontal, length about 3.6 times width,
dorsal margin slightly convex and ventral margin in basal half
with three small projections with slight concavities between
them, slightly concave in distal half (fig. 98), in dorsal view
mesal and lateral margins slightly curved (fig. 99).
Female. Unknown.
Etymology. Laensis — named for the type locality (Lae).
Remarks. Chimarra laensis 1s known from the type locality in
north-east PNG. I realise that the type specimen may not be in
good shape, and the illustration is very incomplete, but the
shape of the inferior appendage is distinctive in lateral view.
Chimarra sappela sp. nov.
Figures 100—102
Holotype. Male (dried, pinned specimen CT-392 figured), PNG,
Morobe District, Wau, 1200 m, about 7° 20' S, 146° 43' E, 7 July 1961,
J. Sedlacek (BPBM ).
Diagnosis. The male of C. sappela can be separated from all
other New Guinea species, including C. morobensis, by the
combination of the robust pincer-like inferior appendages with
almost straight ventral margin, tapered in distal half, with acute
apices angled meso-distally, plus the slender, hooked ventral
lateral lobes of segment X, situated below the phallus in lateral
view.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 5.1 mm. Forewing with forks 1, 2, 3 and 5
present, Rs moderately sinuous or curved, moderately
thickened, basad of discoidal cell.
Male. Segment IX anterior margin in lateral view,
anteroventrally angular (fig. 100), ventral process short, basal
to distal margin of segment IX (figs 100, 101), in lateral view,
keel-like with rounded distal margin, length about half width,
preanal appendages ovate (figs 100, 102). Segment X lateral
lobes with sensilla not discerned (fig. 102), dorsal lateral lobes
relatively long, situated slightly above phallus (fig. 100), in
dorsal view lobes elongate, triangular (fig. 102), ventral lateral
lobes short, slender, hooked, apices angled downwards below
phallus (fig. 100). Phallus with one slender spine included
subapically (figs 100—102). Inferior appendages broadest in
basal half, tapered in distal half to acute apices directed
posteromesally (figs 100—102), in lateral view, angled at about
30° to horizontal, length about 3.7 times width, dorsal margin
slightly concave in distal half and ventral margin mostly
straight (fig. 100), in ventral and dorsal views, mesal and lateral
margins slightly curved (figs 101, 102).
Female. Unknown.
Etymology. Sappela — New Guinea Pidgin for sharp (apices of
inferior appendages).
Remarks. Chimarra sappela is known from the type locality in
north-east PNG.
Chimarra erecta sp. nov.
Figures 103—105
Holotype. Male (dried, pinned specimen CT-358 figured), PNG,
Morobe Province, Wau, 1200 m, about 7? 20' S, 146° 43' E, Malaise
trap, 7 July 1961, J. Sedlacek (BPBM ).
Diagnosis. The male of C. erecta can be separated from all
other New Guinea species, particularly C. verticitas, by the
combination of the vertically directed inferior appendages,
with acute apices directed dorsomesally and the lateral lobes of
segment X, which are angularly bent on the dorsal margin in
the basal half. Inferior appendages in lateral view are tapered
weakly distally.
Description. General body colour and wings brownish. Wings
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 5.7 mm. Forewing with forks 1, 2, 3 and 5 present, Rs
moderately sinuous or curved, not thickened, basad of discoidal
cell; hind wing with forks 1, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally weakly angular (fig. 103), ventral process short,
basal to distal margin of segment IX (figs 103, 104), in lateral
view, keel-like with rounded distal margin, length about half
width (fig. 103), in ventral view, sub-triangular, apex acute (fig.
104), preanal appendages ovate (figs 103, 105). Segment X
lateral lobes relatively long, aligned laterad alongside phallus,
with no sensilla discerned (figs 103—105), in lateral view
slightly tapered distally, apices appear slightly bulbous (fig.
103), in dorsal and ventral views, angularly bent on the dorsal
margin in basal half, slender in distal half, apices appear
slightly out turned (figs 104, 105). Phallus with two slender
spines included subapically (figs 103—105). Inferior appendages
broadest in basal half, slightly tapered in distal half, apices
slender, acute, directed dorsomesally (figs 103, 105), in lateral
view, perpendicular, length about 3.5 times width, dorsal
margin weakly concave and ventral margin slightly convex (fig.
103), in ventral and dorsal views, mesal and lateral margins
slightly curved (fig. 105).
34 Cartwright D.I.
Lo
LI
oe?
4
~i
d
n
-
=
*"*5 514373 es"
» d e. e Fd 7
LA "gm =
b d. faka" È
= m a - ^" Jf EO LU
e E i " b MÀ E
E d 3 A d E b
KK... XM =
^" Li v Ki E
HA o9 7 0 A d i:
n D "hr. n " = Ta l
' 4 "
e " ' = T a |.
S Fu ST TN HRS. preanal
A e 1 MEL epee Rr rT appendage
Figures 103-110. Chimarra spp.; 103—105, Chimarra erecta sp. nov., male, holotype, genitalia; 103, lateral; 104, ventral; 105, dorsal. 106—107,
Chimarra kokodana Kimmins, male, genitalia; 106, lateral; 107, dorsal. 108—110, Chimarra espelandae sp. nov., male, holotype, genitalia; 108,
lateral; 109, ventral; 110, dorsal.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 35
Female. Unknown.
Etymology. Erecta — Latin for upright, erect (inferior appendages).
Remarks. Chimarra erecta is known from the type locality in
north-east PNG.
Chimarra kokodana Kimmins, 1962
Figures 106, 107
Chimarra kokodana Kimmins, 1962: 119; figs 23, 24.— Neboiss,
1986a: 109.
Type material not seen. Holotype. Male, PNG, Kokoda, 1200 ft
(about 366 m), August 1933, L.E. Cheeseman (BMNH).
Material examined. PNG, Central Province. | male (dried, pinned
specimen CT-356 partly figured), Mamai Plantation, east of Port
Glasgow, 150 m, about 10° 16'S, 149° 30' E, It tr, 29 January 1965, R.
Straatman (BPBM); 14 males (CT-345), Iomari Creek, Bereima—Port
Moresby Rd, about 9° 25' S, 147° 15' E, UV light, 23 May 1986, A.
Wells and W. Ismay (NMV ).
Diagnosis. The males of C. kokodana are similar to C. bifida
and C. bicuspidis in the bifid apices on the inferior appendages,
but can be separated from the latter two and all other New
Guinea species, by the combination of the inferior appendages,
which are relatively straight and angled at between about 30°
and 45° to horizontal in lateral view, with bifid apices and the
rounded, keel-like ventral process on segment IX.
Description. (Revised after Kimmins, 1962). General body
colour and wings fawn (personal observation) to ochraceous
(Kimmins 1962: p. 119). Wings (Kimmins, 1962: fig. 23),
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 3.8—4.8 mm. Forewing with forks 1, 2, 3 and 5 present, Rs
moderately sinuous or curved, strongly thickened, basal to
discoidal cell (Kimmins, 1962: fig. 23); hind wing with forks 1,
2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally rounded (fig. 106, Kimmins, 1962: fig. 24A),
ventral process short, basal to distal margin of segment IX, in
lateral view, keel-like with rounded distal margin, length about
half basal width (fig. 106), preanal appendages, ovate (figs 106,
107). Segment X lateral lobes relatively long, aligned laterad to
phallus, sensilla not discerned (figs 106, 107), in lateral view,
appears tapered in distal third (fig. 106), 1n dorsal view slender,
apices appear slightly dilated or bulbous (fig. 107; Kimmins,
1962: fig. 24B). Phallus with two slender spines embedded
subapically. Inferior appendages slightly broader in basal third,
apices directed posteromesally, bifid (figs 106, 107), in lateral
view, angled at between about 30° (Kimmins, 1962: fig. 24A)
and 45° to horizontal, length about 3.4 to 3.7 times width,
dorsal and ventral margins straight in distal two thirds (fig.
106), in dorsal view mesal and lateral margins curved (fig. 107;
Kimmins, 1962: fig. 24B).
Female. Unknown (a female was referred to this species with
some doubt [Kimmins, 1962: p.121 ]).
Remarks. Chimarra kokodana 1s known from 17 male (and one
female?) specimens from four localities in south-east PNG and
New Britain (referred to as C. kokoda by Olah and Mey, 2013,
p. 413). New figures have been drawn to allow direct
comparisons and to accompany the description that 1s revised
in light of new interpretations of Chimarra genitalic structures
from Kimmins’ (1962) original description.
Chimarra espelandae sp. nov.
Figures 108—110
Holotype. Male (in alcohol, figured specimen CT-332), PNG,
Central Province, lomari Creek, Bereima, Port Moresby Rd, about
9° 25' S, 147° 15' E, 23 May 1986, A. Wells and W. Ismay (NMV,
1-224060).
Paratypes. PNG. 3 males (in alcohol, C 1-343), collected with
holotype (NMV ).
Diagnosis. The males of C. espelandae can be separated from
all other New Guinea species by the combination of the sub-
triangular inferior appendages in lateral view and the digitiform
projection on the mesal margin of the inferior appendages.
Description. General body colour and wings pale or fawn
(faded) Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 3.8—4.0 mm. Forewing with forks 1,
2, 3 and 5 present, Rs moderately sinuous or curved, strongly
thickened, basad of discoidal cell; hind wing with forks 1, 2, 3
and 5 present.
Male. Segment IX anterior margin in lateral view, with
rounded extension ventrally (fig. 108), ventral process short,
strongly basal to distal margin of segment IX (figs 108, 109),
in lateral view keel-like, length about half basal width, rounded
distal margin (fig. 108), in ventral view, appears slender with
acute apex (fig. 109), preanal appendages appear digitiform in
lateral view (fig. 108), slightly angular or sub-triangular in
dorsal view (fig. 110). Segment X lateral lobes robust, sensilla
not discerned (figs 108, 110), in lateral view, appear dilated
slightly in distal half, angled disto-ventrally (fig. 108), in
dorsal and ventral views appear sub-truncate distally (figs 109,
110). Phallus with two slender spines included subapically,
basal spine more elongate. Inferior appendages broadest in
basal half, tapered 1n distal half, apices directed posteromesally,
acute (figs 108—110), in lateral view, angled at about 75° to
horizontal, sub-triangular, length about twice maximum
width, dorsal margin slightly concave in basal half, almost
straight in distal half, ventral margin strongly angled in basal
half, mostly straight in distal half (fig. 108), in ventral and
dorsal views, mesal and lateral margins slightly curved (figs
109, 110), in ventral view, mesal margin with digitiform
projection in basal third (fig. 109).
Female. Unknown.
Etymology. Espelandae — named after Marianne Espeland for
her contribution to the study of Chimarra from the Solomon
Islands.
Remarks. Chimarra espelandae is known from four males
collected from the type locality in south-east PNG.
36
Chimarra lalokiana sp. nov.
Figures 111—113
Holotype. Male (in alcohol, figured specimen CT-331), PNG,
Central Province, Laloki River below Rouna Falls, 9? 25' S, 147? 23' E,
26 June 1986, UV light, A. Wells and W. Ismay (NMV, 1-224064).
Paratypes. PNG. 2 males, collected with holotype (NMV).
Diagnosis. The males of C. lalokiana can be separated from all
other New Guinea species by the apparent sub-rectangular
shape of the inferior appendages, in lateral view.
Description. General body colour and wings pale (faded). Wings
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 4.5—5.0 mm. Forewing with forks 1, 2, 3 and 5 present, Rs
weakly sinuous or curved, moderately thickened, basad of
discoidal cell; hind wing with forks 1, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally weakly rounded (fig. 111), ventral process short,
strongly basal to distal margin of segment IX (figs 111, 112), in
lateral view keel-like, length about half basal width, distal
margin rounded (fig. 111), in ventral view appears triangular
(fig. 112), preanal appendages appear rounded in lateral view
(fig. 111), angular 1n dorsal view (fig. 113). Segment X lateral
lobes robust, plate-like, situated laterad of and below phallus,
sensilla not discerned (figs 111—113), in ventral view appear
tapered distally (fig. 112), in dorsal view appear sub-triangular
distally (fig. 113). Phallus with two slender spines included
subapically. Inferior appendages broadest 1n basal half, tapered
very slightly distally, apices acute, directed posteromesally
(figs 111—113), in lateral view, angled at about 45° to horizontal,
length about twice width, appear rectangular and truncate
distally, dorsal and ventral margins mostly straight (fig. 111), in
ventral view, mesal and lateral margins slightly curved, mesal
margin with about three small projections in basal three
quarters (fig. 112).
Female. Unknown.
Etymology. Lalokiana — named for the type locality (Laloki
River).
Remarks. Chimarra lalokiana 1s known from three males from
the type locality in south-east PNG.
Chimarra verticitas sp. nov.
Figures 114—116
Holotype. Male (dried, pinned specimen CT-351 figured), PNG,
Morobe Province, Wau, about 7° 20' S, 146° 43' E, Malaise Trap, 7 July
1964, J. Sedlacek (BPBM ).
Paratypes. PNG. 1 male (dried, pinned specimen CT-363), Morobe
Province, Wau, 1250 m, about 7° 20' S, 146° 43' E, Malaise Trap, 30
August 1965, J. and M. Sedlacek (BPBM); | male (dried, pinned
specimen P'T-1267), Wau, 1200 m, about 7° 20' S, 146° 43' E, Malaise
Trap, 9 March 1965, J. and M. Sedlacek (BPBM).
Diagnosis. The males of C. verticitas can be separated from all
other New Guinea species, in particular C. erecta, C. oláhi,
C. aiyura Korboot and C. falcata Kimmins, by the combination
of the shape of the lateral lobes of segment X, which are slightly
Cartwright D.I.
laterally flattened and angled below the phallus as a pair of
robust, tongue-shaped appendages and the inferior appendages
which appear perpendicular and distally tapered, in lateral view.
Description. General body colour and wings brownish with
golden head. Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 6.2—7.0 mm. Forewing with forks 1,
2, 3 and 5 present, Rs slightly sinuous or curved, slightly
thickened, basad of discoidal cell; hind wing with forks 1, 2, 3
and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally weakly angular (fig. 114), ventral process short,
triangular, basal to distal margin of segment IX (figs 114, 115),
in lateral view length about half basal width (fig. 114), preanal
appendages, appear rounded in lateral view (fig. 114), angular
in dorsal view (fig. 116). Segment X lateral lobes robust, apices
narrowly rounded, situated below phallus with subapical spine
(sensilla?; figs 114, 116), in lateral view appear tapered distally
(fig. 114), in ventral view apices directed slightly mesally,
nearly touching (fig. 115). Phallus dilated apically, with two
slender spines included subapically (figs 114—116). Inferior
appendages broadest 1n basal half, tapered gradually distally,
slender in distal half, apices acute, directed dorsomesally (figs
114, 116), in lateral view appear directed perpendicularly,
length about 3.2 times width, sub-triangular, dorsal margin
mostly straight, ventral margin slightly concave and crenulate
in basal half (fig. 114).
Female. Unknown.
Etymology. Verticitas — Latin for vertical direction (inferior
appendages in lateral view).
Remarks. Chimarra verticitas 1s known from three male
specimens from the Wau district in north-east PNG.
Chimarra antap sp. nov.
Figures 117-119
Holotype. Male (dried, pinned specimen PT-1482 figured), PNG,
Southern Highlands Province, Mount lalibu, 2660 m, about 6° 15' S,
144° 03' E, 8-18 Apr 1968, J.L. Gressitt (BPBM ).
Diagnosis. The male of C. antap can be separated from all
other New Guinea species by the shape of the inferior
appendages, which are sub-semicircular in lateral view, with
dorsal margin almost straight and ventral margin irregularly
convex, together with the plate-like, laterally flattened lateral
lobes of segment X.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7), except
forewing with discoidal cell apparently open. Length of
forewing: male 6.5 mm. Forewing with forks l, 2, 3 and 5
present, Rs slightly sinuous or curved, not thickened, basad of
(open) discoidal cell; hind wing with forks |, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally angular or truncate (fig. 117), ventral process
short, basal to distal margin of segment IX (figs 117, 118), in
lateral view, keel-like, length about half basal width, distal
37
Philopotamidae)
A review of the New Guinea species of Chimarra Stephens (Trichoptera
be
eral lo
t
t
l
la
segment X
sera“
D D ig =
nam TY
E ore
=
= "
lj P
ventral, 113, dorsal. 114—116,
tap sp. nov., male, holotype,
112;
imarra an
,
111, lateral
?
talia
116, dorsal. 117—119, Ch
, geni
D
?
115, ventral
114, lateral;
italia;
, geni
: 119, dorsal.
118, ventral
117, lateral
italia;
Figures 111—119. Chimarra spp.; 111—113, Chimarra lolakiana sp. nov., male, holotype
geni
Chimarra verticas sp. nov., male, holotype
38
margin weakly rounded (fig. 117), in ventral view appears sub-
triangular, apex acute (fig. 118), preanal appendages appear
ovate in lateral view (fig. 117), rod-like in dorsal view (fig. 119).
Segment X lateral lobes laterally compressed, aligned alongside
phallus, sensilla not discerned (figs 117, 118), in lateral view
appear robust, sub-rectangular (fig. 117), in dorsal view, plate-
like (fig. 117). Phallus with two slender spines included near
midlength. Inferior appendages broadest near midlength,
tapered distally, apices directed posteromesally (figs 117—119),
in lateral view angled at about 30° to horizontal, length about
2.3 times width, appears sub-semicircular, dorsal margin
almost straight, ventral margin slightly convex (fig. 117), 1n
ventral view lateral margins curved, mesal margin crenulate
near midlength (fig. 118).
Female. Unknown.
Etymology. Antap — New Guinea Pidgin for summit (type
locality near summit of Mount lalibu).
Remarks. Chimarra antap 1s known from a relatively high-
altitude locality in central PNG.
Chimarra unidentata sp. nov.
Figures 120—122
Holotype. Male (dried, pinned specimen CT-400 figured), PNG,
Central Province, Kokoda, 400 m, about 8° 53' S, 147? 45' E, It tr, 15—
20 November 1965, J. and M. Sedlacek (BPBM).
Diagnosis. The male of C. unidentata can be separated from
all other New Guinea species by the short inferior appendages,
which are tapered distally and possess a prominent sub-apical
mesal projection.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.2 mm. Forewing with forks 1, 2, 3 and 5
present, Rs moderately sinuous or curved, moderately
thickened, basad of discoidal cell; hind wing with forks 1, 2, 3
and 5 present.
Male genitalia. Segment IX anterior margin in lateral view,
anteroventrally rounded (fig. 120), ventral process short,
strongly basal to distal margin of segment IX (figs 120, 121), in
lateral view shallow keel-like, length about 0.4—0.5 times basal
width (fig. 120), in ventral view appears as narrow triangular
shape (fig. 121), preanal appendages small, rounded in lateral
view (fig. 120). Segment X lateral lobes robust basally, tapered
distally, apices acute, sensilla not discerned (figs 120, 121), 1n
lateral view apices angled posteroventrally below phallus (fig.
120). Phallus with two slender spines included subapically.
Inferior appendages broadest near midlength, tapered slightly
distally, apices narrowly rounded (figs 120—122), in lateral view
angled horizontally, sub-ovate, length about 3.5 times width,
dorsal margin mostly straight, ventral margin slightly convex
(fig. 120), 1n ventral view mesal and lateral margins slightly
curved, mesal margin subapically with acute triangular process
(fig. 121).
Female. Unknown.
Cartwright D.I.
Etymology. Unidentata — Latin term for with (one) spike, tooth,
toothed (inferior appendages).
Remarks. Chimarra unidentata 1s known from the type locality
in south-east PNG.
Chimarra stella sp. nov.
Figures 123-125
Holotype. Male (dried, pinned specimen CT-340 figured),
Indonesia, Papua Province, Star Range, 1300 m, about 5° 00' S,
141? 00' E, 28 June 1959, Leiden Museum, Netherlands, New Guinea
exp. (RMNH ).
Diagnosis. The male of C. stella can be separated from all other
New Guinea species, in particular C. goroca, by the combination
of the pair of unique hooked spines partly embedded subapically
in the phallus, the downturned lateral lobes of segment X and
the sub-triangular inferior appendages, 1n lateral view.
Description. General body colour and wings fawn (faded).
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 4.8 mm. Forewing with forks 1, 2, 3 and 5
present, Rs moderately sinuous or curved, moderately
thickened, basad of discoidal cell; hind wing with fork 1
apparently absent, forks 2, 3 and 5 present.
Male genitalia. Segment IX anterior margin in lateral view, with
angular extension ventrally (fig. 123), ventral process on segment
IX short, basal to distal margin of segment IX (figs 123, 124), in
lateral view, broad, keel-like, length about 0.4 times basal width
(fig. 123), in ventral view, slender (fig. 124), preanal appendages,
in lateral view rounded (fig. 125), in dorsal view appear slender,
apices acute (fig. 125). Segment X lateral lobes robust, tapered
distally, apices broad, sub-truncate, sensilla not discerned (figs
123, 124), in lateral view directed posteroventrally (fig. 123), in
ventral view, inner margin slightly concave, apices almost
touching (fig. 124). Phallus with two spines partly included
subapically and one elongate internal spine near midlength (figs
123-125), 1n lateral view subapical spines strongly hooked, acute
apices project distally near apex of phallus (fig. 123). [Inferior
appendages broadest in basal half, tapered strongly distally,
apices directed posteromesally, acute (figs 123—125), in lateral
view angled at about 60° to horizontal, sub-triangular, length
about twice width, dorsal margin slightly convex, ventral margin
angled at right angles near base, narrowed near midlength,
slightly concave in distal half (fig. 123), in ventral view, mesal and
lateral margins slightly curved, slender in distal third (fig. 124).
Female. Unknown.
Etymology. Stella — Latin for star (named for the type locality).
Remarks. Chimarra stella is known from the type locality in
eastern West Papua.
Chimarra aliceae sp. nov.
Figures 126-128
Holotype. Male (in alcohol, figured specimen CT-337), PNG,
Central Province, soak on Bulola side range on Bulola-Aseki Rd,
about 7° 17'S, 146° 30' E, 5 June 1986, A. Wells (NMV, T-22467).
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 39
E.
do
=
LI
p-e
a, E
PL t E E
ui: IE
LI
Li
A
LJ
u
1
=
'
A
EZEKO p55
DATAA
"RS
Wot
= " E
^w "
" LIN d
LI : D l =
p ; ko = D I
| p
LI b i * A
L] L] A La
Li LI » ' Ha
- Lu = m Tiu
A s
. J
Figures 120—128. Chimarra spp.; 120—122, Chimarra unidentata sp. nov., male, holotype, genitalia; 120, lateral; 121; ventral, 122, dorsal. 123—
125, Chimarra Stella sp. nov., male, holotype, genitalia; 123, lateral; 124, ventral, 125, dorsal. 126—128, Chimarra aliceae sp. nov., male, holotype,
genitalia; 126, lateral; 127, ventral; 128, dorsal.
40
Diagnosis. The male of C. aliceae can be separated from all
other New Guinea species by the combination of the strongly
downturned, hook-like lateral lobes of segment X and the short,
sub-semicircular inferior appendages in lateral view.
Description. General body colour and wings pale (faded). Wings
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 4.3 mm. Forewing with forks l, 2, 3 and 5 present, Rs
slightly sinuous or curved, not thickened, basad of discoidal cell;
hind wing with fork 1 apparently absent, forks 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view, anteroventrally
rounded (fig. 126), ventral process on segment IX, in lateral view
broad, keel-like, length about 0.3 times basal width (fig. 126),
preanal appendages, in dorsal view ovoid (fig. 128). Segment X
lateral lobes short, robust, sensilla not discerned (figs 126, 125), in
lateral view hook-like, tapered distally, apices downturned below
phallus, apices acute, angled ventrally (fig. 126). Phallus without
any obvious included spines. Inferior appendages broadest in
basal half, tapered distally, apices directed posteromesally, acute
(figs 126—128), in lateral view, angled at about 30° to horizontal,
length about twice width, appear sub-semicircular, dorsal margin
slightly concave, ventral margin convex, apices narrowly rounded
(fig. 126), in ventral view, mesal margin irregularly concave,
lateral margins strongly convex (fig. 127).
Female. Unknown.
Etymology. Aliceae — named for Alice Wells (collector and
tireless editor of early drafts of this and many of my other
manuscripts).
Remarks. Chimarra aliceae is known from the type locality in
south-east PNG.
Chimarra wara sp. nov.
Figures 129—131
Holotype. Male (figured specimen CT-347), PNG (Western
Highlands Province), Baiyer River sanctuary, 5° 30' S, 144° 10' E, 16
June 1986, A. Wells (NMV, T-22468).
Paratypes. PNG. 6 males, (Western Highlands Province), Baiyer
River sanctuary, Trauna River, 5° 35' 5, 144° 10' E, UV light, 17 June
1986, A. Wells (NMV).
Diagnosis. The males of Chimarra wara can be separated from
other New Guinea species, particularly C. ediana, C. milneana,
C. karamui and C. cavata, by the combination of small features
on the inferior appendages, which in lateral view have an acute
angular projection present on the mid ventral margin and distal
to this is narrowed strongly to a curved digitiform shape.
Description. General body colour and wings fawn (faded) to
light brownish. Wings similar to those of C. ukarumpana (fig.
7). Length of forewing: male 5.0—6.0 mm. Forewing with forks
1,2, 3 and 5 present, Rs slightly sinuous or curved, moderately
thickened, basad of discoidal cell; hind wing with forks 1, 2, 3
and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally rounded (fig. 129), ventral process on segment
IX short, strongly basal to distal margin of segment IX (figs
Cartwright D.I.
129, 130), in lateral view, weakly keel-like, length about 0.35
times basal width (fig. 129), in ventral view appears triangular
(fig. 130). Preanal appendages, in lateral view rounded (fig.
129), in dorsal view appear rounded or more acute distally (fig.
131). Segment X lateral lobes both laterad and ventral to
phallus, with sensilla not discerned (figs 129, 131), in lateral
view, lobes laterad to phallus robust and spine-like ventral to
phallus (fig. 129), in ventral and dorsal views, lobes laterad of
phallus with disto-lateral margins slightly concave, dilated
subapically, apices rounded (figs 130, 131), in ventral view,
spine-like lobe tapered distally, apex acute (fig. 130). Phallus
with two slender spines included subapically (igs 130—131).
Inferior appendages robust in basal half, tapered and slender in
distal third, apices slightly inflexed, acute (figs 129—131), in
lateral view angled at about 30° to horizontal, length about
twice maximum width, dorsal margin slightly sinusoidal,
ventral margin with acute angular projection present near
midlength, margin concave distally (fig. 129), in ventral view,
lateral margins curved, mesal margins with series of small
crenulations with attached hairs (fig. 130).
Female. Unknown.
Etymology. Wara — New Guinea pidgin for water, freshwater or
river (Locality- habitat).
Remarks. Chimarra wara 1s known from seven male specimens
collected from the Western Highlands in central PNG.
Chimarra goroca Sykora, 1967
Figures 132, 133
Chimarra goroca Sykora, 1967: 589; fig. 4.—Neboiss, 1986: 106.
Type material not seen. Holotype. Male, PNG, north-east,
Goroka, Omaheka River, 2200 m, 28 September 1966, J. Illies (BPBM,
lype 7471).
Material examined. 1 male (dried, pinned specimen CT-389, partly
figured), PNG, Southern Highlands Province, ridge west of Dimifa,
south of Mount Giluwe, 2350 m, about 6? 02' S, 143? 5I' E, 11 October
1958, J.L. Gressitt (BPBM ).
Diagnosis. Chimarra goroca can be separated from other New
Guinea species particularly C. stella, by the combination of the
spatulate lateral lobes of segment X and inferior appendages
that are broad-based and sub-triangular, the broad-based keel-
like ventral process on segment IX, in lateral view and the
absence of a pair of large, hooked spines partly embedded
subapically in the phallus.
Description. (Revised after Sykora, 1967). General body colour
and wings light yellowish (Sykora 1967) to brownish. Wings
(Sykora, 1967: fig. 4), similar to those of C. ukarumpana (fig.
7). Length of forewing: male 5.5—7.0 mm. Forewing with forks
1,2, 3 and 5 present, Rs straight to slightly sinuous or curved,
thickened, basad of discoidal cell; hind wing with forks 1, 2, 3
and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally angular (fig. 132; Sykora 1967: fig. 4A), in
lateral view, ventral process on segment IX broad-based, keel-
like, length about 0.25 times basal width. Preanal appendages
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 41
_ Y——— lateral lobe Oo Pe UEAK kea LA EAN =
A lateral lobe
i — segment X
lateral lobe
wo segment X
al
LI
lateral lobe
LJ
a
=
s
=
Ep. = adja J p" . =
segment X De b erk €
"s ee *
b a 1 a '
* m/ à . 5 z
' Mu . 1 A
4 > . A
è " LI LI
= s r
à i l -
Figures 129-136. Chimarra spp.; 129—131, Chimarra wara sp. nov., male, holotype, genitalia; 129, lateral; 130, ventral; 131, dorsal. 132-133,
Chimarra goroca Sykora, male, genitalia; 132, lateral; 133, ventral. 134—136, Chimarra huonana sp. nov., male, holotype, genitalia; 134, lateral;
135, ventral; 136, dorsal.
42
rounded (fig. 132; Sykora, 1967: fig. 4A; Neboiss, 1986a: fig. p.
106). Segment X lateral lobes angled posteromesally, spatulate,
apices rounded, with sensilla not discerned (figs 132, 133;
Sykora, 1967: fig. 4A; Neboiss, 1986a: fig. p. 106), in lateral
view sub-quadrate, angled at about 45? posteroventrally, apices
below phallus (fig. 132; Sykora, 1967: fig. 4A; Neboiss, 1986a:
fig. p. 106). Phallus with two small, hooked, internal spines
subapically (figs 132, 133) and an elongate spine more basally
(Sykora, 1967: fig. 4E; Neboiss, 1986a: fig. p. 106). Inferior
appendages tapered slightly in distal third, apices angled
posteromesally, acute (figs 132, 133; Sykora, 1967: figs 4A—C;
Neboiss, 1986a: fig. p. 106), in lateral view appear sub-
triangular, broad-based, angled at about 45° to horizontal,
length about 2.3 times width (fig. 132; Sykora, 1967: fig. 4A).
Female. Unknown.
Remarks. Chimarra goroca 1s known from two males from two
sites 1n central and north-east PNG, with both males collected
at relatively high altitudes. New figures have been drawn to
allow direct comparisons and to accompany the description
that 1s revised in light of new interpretations of Chimarra
genitalic structures from Sykora’s (1967) original description.
Chimarra huonana sp. nov.
Figures 134—136
Holotype. Male (figured specimen CT-387), PNG, Morobe
Province, Finschhafen, Huon peninsula, 80 m, 6° 34' S, 147° ST E,
Malaise trap, 14 April 1963, J. Sedlacek (BPBM ).
Diagnosis. The male of Chimarra huonana can be separated
from other New Guinea species, by the unique shape of the
inferior appendages, which are very narrow basally, short,
robust and irregular shaped.
Description. General body colour and wings brownish. Wings
similar to those of C. ukarumpana (fig. 7). Length of forewing:
male 5.3 mm. Forewing with forks 1, 2, 3 and 5 present, Rs
slightly sinuous or curved, slightly thickened, basad (fig. 135).
Male. Segment IX anterior margin in lateral view,
anteroventrally angular (fig. 134), ventral process on segment
IX strongly basal to distal margin of segment IX (figs 134, 135),
in lateral view, weakly keel-like, length about 0.25 times basal
width. Preanal appendages, laterally compressed (figs 134,
136), 1n lateral view rounded (fig. 134), in dorsal view appear
bifid, apices narrowly rounded (fig. 136). Segment X lateral
lobes laterad of phallus, plate-like, laterally compressed, with
sensilla not discerned (figs 134, 136), in lateral view robust,
aligned level with and below phallus, apices appear acute and
bifid (fig. 134). Phallus with two slender spines included
subapically and near midlength (figs 134—136). Inferior
appendages narrowed basally, robust in distal two thirds,
directed dorsolaterally (figs 134, 135), in lateral view angled at
about 80° to horizontal, length about 2.2 times width with
irregular margins, dorsal margin sinusoidal, ventral margin
with acute angular projections present near midlength (fig.
134), in ventral view lateral margins strongly curved, mesal
margins somewhat irregular (fig. 135).
Cartwright D.I.
Female. Unknown.
Etymology. Huonana — named for the type locality (Huon
Peninsula).
Remarks. Chimarra huonana is known from the type locality
in north-east PNG.
Chimarra missim sp. nov.
Figures 137—139
Holotype. Male (dried, pinned specimen PT-1248 figured), PNG,
Morobe Province, near Wau, Mount Missim, 1200 m, 7? 15' S,
146° 48' E, Malaise trap, 27 May 1966, J.L. Gressitt (BPBM ).
Paratypes. PNG. 2 males (dried, pinned specimens P'I-1247,
1249), collected with holotype (BPBM ).
Diagnosis. Chimarra missim can be separated from other New
Guinea species, particularly C. denticulata, by the inferior
appendages which have a broadly crenulate mesal margin in
lateral view and laterally compressed, slightly downturned
lateral processes on segment X.
Description. General body colour and wings light brown.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 5.2-5.4 mm. Forewing with forks 1, 2, 3 and 5
present, Rs slightly sinuous or curved, not thickened, basad of
discoidal cell; hind wing with forks 1, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally rounded (fig. 137), ventral process on segment
IX basal to distal margin of segment IX (figs 137, 138), 1n
lateral view weakly keel-like, length about 0.25 times basal
width. Preanal appendages relatively large, laterally compressed
(figs 137, 139), in lateral view rounded (fig. 137), in dorsal view
appear digitiform (fig. 139). Segment X lateral lobes aligned
alongside phallus, robust, laterally compressed, with sensilla
not discerned (figs 137, 139), in lateral view tapered in distal
quarter, angled posteroventrally (fig. 137). Phallus without any
obvious included spines (figs 137—139). Inferior appendages
elongate, apices acute, angled posteromesally (figs 137, 138), in
lateral view angled at about 30* to horizontal, broadest 1n basal
half, tapered slightly distally, length about 3.5 times width with
dorsal margin slightly concave, ventral margin widely crenulate
(fig. 137), in ventral view lateral and mesal margins curved (fig.
138).
Female. Unknown.
Etymology. Missim — named for the type locality (Mount
Missim).
Remarks. Chimarra missim is known from three males
collected from the type locality 1n north-east PNG.
Chimarra denticulata sp. nov.
Figures 140—142
Holotype. Male (dried, pinned specimen PT-1393 figured), PNG,
Morobe Province, near Wau, Mount Missim, 1600 m, 7? 20' S,
146° 43' E, Malaise trap, 25 April 1966, J.L. Gressitt and O.R. Wilkes
(BPBM).
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 43
E
ATERAT e
*
m "oltm
n
n
a
Figures 137-145. Chimarra spp., 137—139, Chimarra missim sp. nov., male, holotype, genitalia; 137, lateral; 138, ventral; 139, dorsal. 140—142,
Chimarra denticulata sp. nov., male, holotype, genitalia; 140, lateral; 141, ventral; 142, dorsal. 143—145, Chimarra sepikana, male, holotype,
genitalia; 143, lateral; 144, ventral; 145, dorsal.
44
Diagnosis. The male of Chimarra denticulata can be separated
from other New Guinea species, particularly C. missim, by the
shape of the inferior appendages, which have two prominent
teeth on the mesal margin in ventral view and the broad, keel
shaped ventral process on segment IX.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7), length of
forewing: male 4.6 mm. Forewing with forks l, 2, 3 and 5
present, Rs sinuous or curved, thickened, basad of discoidal
cell.
Male. Segment IX anterior margin in lateral view,
anteroventrally rounded (fig. 140), ventral process in lateral
view broad, weakly keel-like, length about 0.2 times basal
width (fig. 140). Preanal appendages, in lateral view ovate (fig.
140), in dorsal view appear rounded (fig. 142). Segment X
lateral lobes laterad and ventral to phallus, with sensilla not
discerned (figs 140, 142), in lateral view appear tapered distally
(fig. 140), in ventral view lobes appear tongue-shaped (fig.141).
Phallus with two elongate, slender spines included subapically
(figs 140—142). Inferior appendages broadest in basal half,
tapered in distal half, apices directed posteriorly, acute (figs
140, 141), in lateral view angled at about 30° to horizontal,
length about 4.5 times width with dorsal margin nearly straight,
ventral margin with angular projection present near midlength
(fig. 140), in ventral view lateral margins slightly curved, mesal
margins curved with two prominent teeth near midlength (figs
141, 142).
Female. Unknown.
Etymology. Denticulata — Latin for finely toothed, serrated
(two teeth on inner margin of inferior appendages).
Remarks. Chimarra denticulata is known from the type
locality in north-east PNG.
Chimarra sepikana sp. nov.
Figures 143—145
Holotype. Male (dried, pinned specimen CT-371 figured), PNG,
East Sepik Province, Angoram, 28-30 m, about 4° 04' S, 144° 03' E,
14-16 August 1969, J.L. Gressitt (BPBM ).
Other material examined. 1 male (CT-404), PNG, north-east,
Bulem River, 64 km north-east Lae, 30 m, about 6? 30' S, 147? OI' E,
29 April 1963, J. Sedlacek (BPBM ).
Diagnosis. The males of C. sepikana can be separated from all
other New Guinea species, including C. aiyura Korboot,
C. felholda and C. simbuensis, by the combination of the very
weak keel-like ventral process on segment IX, the lateral lobes
of segment X which are laterally compressed and the slender,
sub-triangular inferior appendages, in lateral view.
Description. General body colour and wings fawn (faded) to
light brownish. Wings similar to those of C. ukarumpana (fig.
7) Length of forewing: male 4.4 (specimen CT-404) — 6.2
(specimen CT-371) mm. Forewing with forks 1, 2, 3 and 5
present, Rs slightly sinuous or curved, very slightly thickened,
basad of discoidal cell; hind wing with forks l, 2, 3 and 5
present.
Cartwright D.I.
Male. Segment IX anterior margin in lateral view, anteroventrally
narrowly rounded, ventral process on segment IX, in lateral
view, weakly keel-like, length about 0.2 times basal width,
preanal appendages, laterally compressed, rounded in lateral
view (fig. 143), appear finger-like in dorsal view (figs 145).
segment X with lateral lobes laterally compressed, aligned
alongside phallus, sensilla not discerned (figs 143, 145), 1n lateral
view robust, broadly rounded distally (fig. 143), 1n ventral and
dorsal views appear slender (figs 144, 145). Phallus with no
obvious included spines (figs 143-145). Inferior appendages
broadest in basal third, tapered gradually distally, slender in
distal half, apices directed posteromesally, acute (figs 143, 145),
in lateral view angled at about 45° to horizontal, length about
3.5 times width, slender, sub-triangular, dorsal margin mostly
straight, ventral margin slightly angled in basal half (fig. 143), in
ventral and dorsal views lateral margins curved (figs 144, 145).
Female. Unknown.
Etymology. Sepikana — named for the type locality (Sepik
Region of PNG).
Remarks. Chimarra sepikana 1s known from the holotype male
specimen from north PNG. A second male from north-east
PNG, about 420 km east of the type locality, is here attributed
to C. sepikana, but is smaller and differs slightly in the shape
of the lateral lobes of segment X, which are out-turned distally.
Chimarra lindyae sp. nov.
Figures 146—148
Holotype. Male (specimen in alcohol, CT-715 figured), PNG, West
Highlands Province, Peregai, 1250 m, about 6° 09' S, 144^ 11' E, 14
June 1986, A. Wells (NMV, T-22475).
Paratypes. PNG. 6 males, collected with holotype (NMV ).
Diagnosis. The males of C. lindyae can be separated from all
other New Guinea species, by the presence of a short, acute,
subapical process on the inferior appendages.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 5.3-6.1 mm. Forewing with forks 1, 2, 3 and 5
present, Rs slightly sinuous or curved, strongly thickened, basad
of discoidal cell; hind wing with forks |, 2, 3 and 5 present.
Male. Segment IX anterior margin in lateral view,
anteroventrally rounded (fig. 146), ventral process on segment
IX, in lateral view, short, keel-like, length about 0.4-0.5 times
basal width, preanal appendages ovoid in lateral and dorsal
views (figs 146, 148). Segment X lateral lobes aligned alongside
and below phallus, broad basally, narrowed near midlength,
slender in distal third, apices rounded, sensilla not discerned.
Phallus without any obvious included spines (figs 146—148).
Inferior appendages elongate with short acute process
subapically, apices acute, directed posteromesally (figs 146,
147), in lateral view, angled at about 45° to horizontal, length
about 3.7 times width, appear sub-rectangular, dorsal and
ventral margins mostly straight, subapical process forms a
concavity with apex (fig. 146), in ventral and dorsal views
lateral margins curved (figs 147, 148).
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae
lateral lobes
segment X
153
Figures 146—154. Chimarra spp.; 146—148, Chimarra lindyae sp. nov., male, holotype, genitalia; 146, lateral; 147, ventral; 148, dorsal. 149—151,
Chimarra kebarana sp. nov., male, holotype, genitalia; 149, lateral; 150, ventral; 151, dorsal. 152-154, Chimarra simbuensis sp. nov., male,
holotype, genitalia; 152, lateral; 153, ventral; 154, dorsal.
46
Female. Unknown.
Etymology. Lindyae — named for Lindy Cartwright, whose
support and encouragement has been invaluable during this
long project.
Remarks. Chimarra lindyae is known from seven male
specimens from central PNG.
Chimarra kebarana sp. nov.
Figures 149—151
Holotype. Male (dried, pinned specimen CT-379 figured),
Indonesia, Papua Province, Vogelkop, Kebar Valley, W of Manokwari,
550 m, about 0° 52'S, 134° 05' E, 4—31 January 1962, S. and L. Quate
(BPBM).
Paratype. Indonesia. Male (dried, pinned specimen CT-380),
Papua Province, Oransbari, south of Manokwari, 3 m, about 1° 21'S,
134° 16' E, 12 February 1963, R. Straatman (BPBM ).
Diagnosis. T he males of C. kebarana can be separated from all
other New Guinea species, in particular C. oláhi, C. aiyura
Korboot and C. falcata Kimmins, by the combination of the
shape of the lateral lobes of segment X, which are situated
laterad of and below the phallus and appear as a pair of slender
processes ventral to the phallus, which diverge subapically and
the short, sub-triangular inferior appendages, in lateral view.
Description. General body colour and wings light brownish.
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 5.4—5.7 mm. Forewing with forks 1, 2, 3 and 5
present, Rs slightly sinuous or curved, slightly thickened, basad
of discoidal cell.
Male. Segment VIII with acute ventral process. Segment IX
anterior margin in lateral view, anteroventrally narrowly
rounded (fig. 149), ventral process on segment IX, in lateral
view, very weakly keel-like, length about 0.2 times basal
width, preanal appendages, in lateral view rounded, narrowed
basally (fig. 149), in dorsal view appear sub-triangular (fig.
151). Segment X lateral lobes laterad of and ventral to the
phallus (hard to discern), sensilla not discerned (figs 149, 151),
in lateral view apices appear acute (fig. 149), in ventral view
lateral lobes appear as pair of slender processes, apices acute,
directed slightly outwardly (fig. 150). Phallus with two
slender, subapical internal spines (figs 149—151). Inferior
appendages broadest in basal half, tapered gradually distally,
apices acute, directed posteromesally (figs 149, 150), in lateral
view angled at about 45? to horizontal, length about 2.3 times
width, appear sub-triangular, dorsal margin mostly straight,
ventral margin right angled in basal third, sub-truncate
distally (fig. 149), 1n ventral and dorsal views lateral margins
curved (figs 150, 151).
Female. Unknown.
Etymology. Kebarana — named for the type locality (Kebar
Valley of Indonesian Papua).
Remarks. Chimarra kebarana 1s known only from two male
specimens from north-east Papua.
Cartwright D.I.
Chimarra simbuensis sp. nov.
Figures 152-154
Holotype. Male (dried, pinned specimen CT-396 figured), PNG,
Simbu (Chimbu) Province, ca north-west of Lake Piunde, 3600—3800
m, about 5° 47'S, 145° 04' E, 14-16 August 1969, J.L. Gressitt (BPBM ).
Paratype. PNG. Male (dried, pinned specimen CT-395), Simbu
(Chimbu) Province, Mount Wilhelm, 3560+ m, 5°44'S, 145°04'E, 1—9
Aug 1969, J.L. Gressitt (BPBM ).
Diagnosis. The males of C. simbuensis can be separated from
all other New Guinea species, by the unique lateral
protuberances on the phallus and the basi-ventral ‘flange’ on
the inferior appendages. It shares with C. oláhi the character of
ventral ‘flanges’ on the inferior appendages.
Description. General body colour and wings fawn to light
brownish. Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 4.6—5.8 mm. Forewing with forks 1,
2, 3 and 5 present, Rs straight, not sinuous or curved, not
thickened, basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with rounded
extension ventrally (fig. 152), ventral process on segment IX, in
lateral view very weakly keel-like, length about 0.2 times basal
width, preanal appendages, rounded in lateral view (fig. 152), in
dorsal view appear sub-triangular (fig. 154). Segment X lateral
lobes laterad of phallus, sensilla not discerned (figs 152, 154),
in lateral view robust (fig. 152), in ventral view slender in distal
third (fig. 153). Phallus with no obvious included spines but
with pair of triangular, lateral protuberances or fins subapically
(figs 153, 154). Inferior appendages broadest in basal half, with
a flange baso-ventrally, tapered gradually distally, apices acute,
directed posteromesally (figs 152, 153), in lateral view aligned
horizontally, robust, length about 1.9 times width, appear sub-
ovoid, dorsal margin slightly concave, ventral margin slightly
convex in basal half, apices broadly rounded (fig. 152), in
ventral view lateral margins curved (fig. 153).
Female. Unknown.
Etymology. Simbuensis — named for the type locality (Simbu
Province of PNG).
Remarks. Chimarra simbuensis is known from two male
specimens from two very high-altitude localities in central PNG.
Chimarra maai sp. nov.
Figures 155—157
Holotype. Male (dried, pinned specimen CT-377 figured),
Indonesia, Papua Province, Bodem, 11 km south-east of Oerberfaren,
100 m, about 1? 58' S, 138? 44' E, 7-17 Jul 1959, T.C. Maa (BPBM ).
Diagnosis. The male of C. maai can be separated from all other
New Guinea species, including C. pinga Cartwright, by the
combination of the field of small, dark spines at the apex of the
phallus and the shape of the inferior appendages, which are
narrowed at about the middle, in lateral view.
Description. General body colour and wings light brownish
(badly damaged).
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 47
Male. Segment [X anterior margin in lateral view, anteroventrally
weakly angled (fig. 155), ventral process on segment IX, not
discerned (specimen slightly damaged?; figs 155, 156), preanal
appendages relatively large, laterally compressed, rounded in
lateral view (fig. 155), in dorsal view appear sub-triangular (fig.
157). Segment X lateral lobes laterad of phallus, robust, apices
widely rounded, sensilla not discerned. Phallus with one slender
spine included subapically (figs 155—157). Inferior appendages
broadest in basal half, narrowed near midlength, slender in distal
half, apices acute, directed posteriorly (figs 155, 156), in lateral
view angled at about 60° to horizontal, length about 3.5 times
width, dorsal margin almost straight, ventral margin slightly
convex in basal half and straight in distal half (fig. 155), in ventral
view mesal and lateral margins slightly curved (fig. 156).
Female. Unknown.
Etymology. Maai — named for T.C. Maa (collector).
Remarks. Chimarra maai 1s known only from Papua.
Chimarra supia sp. nov.
Figures 158—160
Holotype. Male (figured specimen CT-342), PNG, (Morobe
Province), Wau, 1670 m, about 7? 20' S, 146? 43' E, March 1984, T.
New (NMV, 1-22482).
Paratype. Male (CT-391), PNG, south-east, Milne Bay (about
10° 22' S, 150° 30' E), Malaise Trap, 14—23 February 1969, J. and M.
Sedlacek (BPBM ).
Diagnosis. Chimarra supia can be separated from all other
New Guinea species by the combination of the spine-like ventral
process on the phallus (or phallobase) and semicircular shaped
inferior appendages in lateral view together with the shape of
the lateral lobes of segment X, which are dilated sub-apically 1n
dorsal view, similarly to C. bicuspidis and C. karimui.
Description. General body colour and wings pale to fawn
(faded). Wings similar to those of C. ukarumpana (fig. 7).
Length of forewing: male 5.1—5.3 mm. Forewing with forks 1,
2, 3 and 5 present, Rs slightly sinuous or curved, slightly
thickened, basad of discoidal cell.
Male. Segment IX anterior margin in lateral view, with broadly
rounded extension ventrally (fig. 158), ventral process on
segment IX, not obvious (figs 158, 159), preanal appendages
sub-triangular in lateral and dorsal views (figs 158, 160).
segment X lateral lobes laterad of phallus, apices narrowly
rounded, with sensilla not discerned (figs 158, 160), lateral
lobes in lateral view appear tapered distally (fig. 158), in dorsal
and ventral views with subapical, triangular barbs (figs 158,
160). Phallus with two small spines included subapically and a
robust, partly emergent spine disto-ventrally (fies 158, 159).
Inferior appendages robust, broadest near middle, tapered
basally and distally, apices directed dorsomesally, subacute
(figs 158—160), in lateral view appear semicircular, angled at
about 45° to horizontal, length about 2.2 times width, dorsal
margin almost straight and ventral margin strongly convex,
slightly crenulate in distal half (fig. 158), in dorsal view lateral
margins slightly curved (fig. 160).
Female. Unknown.
Etymology. Supia — New Guinea pidgin for spear (lateral lobes
of segment X, in dorsal and ventral views).
Remarks. Chimarra supia 1s known from two male specimens
from two localities in north-east and south-east PNG, separated
by about 530 km in a straight line.
Chimarra ismayi sp. nov.
Figures 161—163
Holotype. Male (figured specimen PT-1778), PNG, Oro Province,
Myola 2, 2080 m, forest river, about 9° 05' S, 147° 42' E, 26 July 1986,
J. W. Ismay (NM V, 1-22483).
Diagnosis. Chimarra ismayi can be separated from all other
New Guinea species by the shape of the inferior appendages,
which are short and robust with an acute, mesal, subapical
process. Superficially the shape of the inferior appendages
seems most similar to south-east Asian species such as C.
concolor Ulmer and C. spinifera Kimmins.
Description. General body colour and wings fawn (faded).
Wings similar to those of C. ukarumpana (fig. 7). Length of
forewing: male 5.1 mm. Forewing with forks 1, 2, 3 and 5
present, Rs slightly sinuous or curved, moderately thickened,
basad of discoidal cell; hind wing with forks 1, 2, 3 and 5
present.
Male. Segment IX anterior margin in lateral view,
anteroventrally weakly angled, distal margin broadly rounded
(fig. 161), ventral process on segment IX, not obvious (figs 161,
162), preanal appendages in lateral view ovoid (fig. 161), in
dorsal view appear irregular (fig. 163). Segment X mesal lobe
damaged), lateral lobes dorso-ventrally flattened 1n distal third,
with sensilla not discerned (figs 161, 163), in lateral view,
tapered distally (fig. 161). Phallus not discerned (or has been
removed?; figs 161, 162). Inferior appendages short, robust with
triangular, meso-subapical process (figs 161—163), in lateral
view appear ovoid, aligned horizontally, length about 1.8 times
width, broadest near midlength, dorsal and ventral margins
convex, broadly rounded distally (fig. 161), in ventral and dorsal
views, lateral margins slightly convex (figs 162, 163).
Female. Unknown.
Etymology. Ismayi — named for J.W. Ismay (collector).
Remarks. Chimarra ismayi is known from the holotype male
specimen from south-east PNG. This specimen has probably
been damaged slightly with the possible removal of the phallus?
Acknowledgements
I thank the late Dr Arturs Neboiss, together with Dr Alice
Wells, for providing access to the specimens; Alice for her
time in giving extremely incisive and helpful advice on earlier
drafts of this manuscript; and the referee(s) for extremely
constructive comments on this manuscript. I am indebted to
my wife, Lindy, and my family for financial and moral support
during the extended duration of this project.
Cartwright D.I.
mesal lobe?
segment X
lateral lobe
163 | |
162
Figures 155-161. Chimarra spp.; 155-157, Chimarra maai sp. nov., male, holotype, genitalia; 155, lateral; 156, ventral; 157, dorsal. 158-160,
Chimarra supia sp. nov., male, holotype, genitalia; 158, lateral; 159, ventral; 160, dorsal. 161—163, Chimarra ismayi sp. nov., male, holotype,
genitalia; 161, lateral; 162, ventral; 163, dorsal.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae) 49
References
Blahnik, R.J. 1998. A revision of the neotropical species of the genus
Chimarra, subgenus Chimarra (Trichoptera: Philopotamidae).
Memoirs of the American Entomological Institute 59: 1-318.
Blahnik, R.J., Holzenthal, R.W., and Huisman, J. 2009. Chimarra ot
Sabah | and Sarawak, northern Borneo (Trichoptera:
Philopotamidae). Tijdschrift voor Entomologie 152: 109—166.
Botosaneanu, L., and Vos, R. de. 2006. A conspicuous new caddisfly
species (Trichoptera: Philopotamidae) from Papua (Indonesian
New Guinea). Bulletin de l'Institut Royal des Sciences Naturelles
de Belgique, Entomologie 76: 135—140.
Cartwright, D.I. 2001. Four new species and a new record of Chimarra
Stephens (Trichoptera: Philopotamidae) from Bougainville Island,
Papua New Guinea. Memoirs of Museum Victoria 58: 223—230.
Cartwright, D.I. 2002. The Australian species of Chimarra Stephens
(Trichoptera: Philopotamidae). Memoirs of Museum Victoria. 59:
393—437.
Holzenthal, R.W., Blahnik, R.J., Prather, A.L., and Kjer, K.M. 2007.
Order Trichoptera Kirby, 1813 (Insecta), Caddisflies. Zootaxa
1668: 639—698.
Jacquemart, S. 1981. Un Trichoptóre Philopotamide nouveau de
Nouvelle-Guinée (Irian Jaya); Chimarra leopoldi sp.n. Bulletin de
l'Institut Royal des Sciences Naturelles de Belqique (Ent) 53: 1—6.
Johanson, K.A., and Espeland, M. 2010. Description of new Chimarra
(Trichoptera: Philopotamidae) species from the Solomon Islands.
Zootaxa 2638: 25—43.
Johanson, K.A., and Olah, J. 2012. Revision of the Fijan Chimarra
(Trichoptera, Philopotamidae) with description of 24 new species.
Zootaxa 3354: 1-58.
Johanson, K.A., Wells, A., Malm, T., and Espeland, M. 2011. The
Trichoptera of Vanuatu. Deutsche Entomologische Zeitschrift 58:
279-320.
Kimmins, D.E. 1957. Neuroptera and Trichoptera collected by Mr.
J.D. Bradley on Guadalcanal Island, 1953-4. Bulletin of the
British Museum (Natural History), Entomology 5: 289—308.
Kimmins, D.E. 1962. Miss L.E. Cheeseman’s expeditions to New
Guinea. Trichoptera. Bulletin of the British Museum (Natural
History), Entomology 11: 99—187.
Korboot, K. 1965. A new species of caddis-fly (Trichoptera) from New
Guinea. Journal of the Entomological Society of Queensland 4: 40.
Malicky, H. 1978. Beitráge zur Kenntnis der Insektenfauna Sumatras.
Teil 7: Kócherfliegen (Trichoptera) aus Sumatra und West-
Neuguinea. 1. Rhyacophilidae, Glossosomatidae, Stenopsychidae,
Goeridae. Beitr. Naturk, Forsch. Siidw. Dtl. 37: 159—173.
Malicky, H. 1994. Neue Trichopteren aus Nepal, Vietnam, China, von
den Philipen und vom Bismarck-Archipel (Trichoptera).
Entomologische Berichte Luzern 31: 163—172.
Malicky, H. 2010. Atlas of southeast Asian Trichoptera. Biology
Department, Faculty of Science, Chiang Mai University: Chiang
Mai, Thailand. 346 pp.
Malicky, H. 2011. Neue Trichopteren aus Europa and Asien. Braueria
38: 23-43.
Malicky, H., Melnitsky, S.I., and Ivanov, V.D. 2014. Kocherfliegen von
den Inseln Ambon (Papua) und Biak (Molukken), mit Beschreibungen
von 14 neuen Arten (Trichoptera). Linzer Biologische Beitraege 46:
820—843.
Mey, W. 2006. Chimarra guentheri sp. nov. — a new species from New
Guinea (Insecta, Trichoptera) Mitteilungen aus dem Museum für
Naturkunde in Berlin, Zoologische Reihe 82: 261—263.
Morse, J.C. (ed.) 2018. Trichoptera world checklist. Accessed at: http://
entweb.sites.clemson.edu/database/trichopt/ on 31 October 2019.
Mosely, M.E., and Kimmins D.E. 1953. The Trichoptera (Caddis-
flies) of Australia and New Zealand. British Museum (Natural
History): London. 550 pp.
Mufioz-Quesada, F.J., and Holzenthal, R.W. 2008. Revision of the
Nearctic species of the caddisfly genus Wormaldia McLachlan
(Trichoptera: Philopotamidae). Zootaxa 1838: 1—75.
Navas, R.P.L. 1933. Decadas de Insectos neuvos (Década 23). Brotéria,
Serie de Ciencias Naturais 29: 34—44.
Neboiss, A. 1984. Distribution of Trichoptera 1n the SW Pacific area.
Victorian Entomologist 14: 14—17.
Neboiss, A. 1986a. Atlas of Trichoptera of the SW Pacific — Australian
Region. Dr W. Junk: Dordrecht, Netherlands. 286 pp.
Neboiss, A. 1986b. Identity of two caddis-fly species described by
Brauer and Navas (Trichoptera). Aquatic Insects 8: 99—104.
Neboiss, A. 1987a. Identity of species of Trichoptera described by
K. Korboot 1964—65 (Insecta). Memoirs of Museum Victoria 48:
131-140.
Neboiss, A. 1987b. Preliminary comparison of New Guinea
Trichoptera with the faunas of Sulawesi and Cape York Peninsula.
Pp 103-108 in Bournaud, M., and Tachet, H. (eds), Proceedings of
the 5th International Symposium on Trichoptera. Dr W. Junk:
Dordrecht, Netherlands.
Neboiss, A. 2003. New genera and species, and new records, of
Tasmanian Trichoptera (Insecta). Papers and Proceedings of the
Royal Society of Tasmania 136: 43-82.
Olah, J. 2012a. Taxonomic list of Trichoptera described and recorded
from New Guinea region. Folia historico-naturalia Musei
Matraensis 36: 105—122.
Oláh, J. 2012b: New species and records of Trichoptera from Batanta
and Waigeo Islands (Indonesia, Raja Ampat Archipelago, Papua
[Irian Jaya]). Braueria 39: 39—57.
Olah, J. 2013: On the Trichoptera of Batanta Island (Indonesia, West
Papua, Raja Ampat Archipelago). Folio Entomologica Hungarica
Rovartani Kozlemenyek 74: 21-78.
Olah, J. 2014. On the Trichoptera of Batanta Island (Indonesia, West
Papua, Raja Ampat Archipelago). III. Folio Entomologica
Hungarica Rovartani Kozlemenyek 75: 91-131.
Olah, J. 2015: On the Trichoptera of New Guinea II. Folio
Entomologica Hungarica Rovartani Kozlemenyek 76: 119—166.
Olah, J. 2016. On the Trichoptera of Batanta Island. (Indonesia, West
Papua, Raja Ampat Archipelago). Folia Historico-Naturalia
Musei Matraensis 40: 95-135.
Olah, J., and Mey, W. 2013. New species of caddisflies from New
Guinea (Insecta, Trichoptera). Entomofauna, Zeitschrift für
entomologie 31: 409—432.
Oláh, J., and Kovács, T. 2018. On the Trichoptera of Batanta Island
(Indonesia, Papua, Raja Ampat Archipelago) VI. Folia Historico-
Naturalia Musei Matraensis 42: 163—195.
Ross, H.H. 1956. Evolution and classification of the mountain
caddisflies. University of Illinois Press: Urbana, IL. 213 pp.
Stephens, J.F. 1829. A systematic catalogue of British insects. Part 1.
Baldwin and Cradock: London. 416 pp.
Sykora, J. 1967. Trichoptera collected by Prof. J. Illies in New Guinea
and New Caledonia. Pacific Insects 9: 585—595.
Wahlberg E., and Johanson K.A. 2014. The age, ancestral distribution
and radiation of Chimarra (Trichoptera: Philopotamidae) using
molecular methods. Molecular Phylogenetics and Evolution 79:
433—442.
Wells, A., and Johanson, K.A. 2016. Micro-caddisfly faunas of
Australia and the southwest Pacific (Trichoptera, Hydroptilidae).
Zoosymposia 10: 439—450.
BHL
ae
Blank Page Digitally Inserted
Live Music
Archive
Librivox
Free Audio
Metropolitan Museum
Cleveland
Museum of Art
Internet
Arcade
Console Living Room
Open Library
American
Libraries
TV News
Understanding
9/11